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TIE  FIREPROOFING 
SYSTEAV  WITH  TfflRTY 
YEARS  OF  PROOF 


THE  FIREPROOFING  SYSTEM 
WITH  THIRTY  YEARS  OF  PROOF 


Applied  throughout  the 
United  States  and  Canada 
by  the 

KEYSTONE  GYPSUM  FIREPROOFING  CORPORATION 

1328  BROADWAY,  NEW  YORK,  N.  Y. 


Philadelphia,  Pa. 
North  American  Building 


Branches: 

Washington,  D.  C. 

Real  Estate  Trust  Building 


Richmond,  Va. 

418  East  Main  Street 


KEYSTONE  FIREPROOFING  COMPANY  OF  CANADA,  Ltd. 

Montreal 

603  New  Birks  Building 


Quebec 

103  St.  John  Street 


Toronto 

250  Richmond  Street,  W. 


©  1924.  Keystone  Gypsum  F ireproofing  Corporation 


AVERY  LIBRARY 
COLUMBIA  UNIVERSITY 


Contents 


1  The  Metropolitan  System  —  What  it  is 
and  How  it  is  Applied  (See  Pages  3  to  6) 

y  The  Advantages  of  the  Metropolitan 

System  (See  Pages  7  to  13) 

?  The  System  as  Applied  to  Floors 

(See  Pages  14  to  20) 

The  System  as  Applied  to  Roofs 

(See  Pages  21  to  30) 


b 


Technical  Data — Insulating  Value,  Tests, 
Tables,  Structural  Details  and  Reports 

(See  Pages  31  to  45) 


Installations 


(See  Pages  46  to  52) 


THE  METROPOLITAN  SYSTEM 


WHAT  IT  IS 

AND  HOW  IT  IS  APPLIED 


THE  Metropolitan  System  is  a  system 
for  constructing  fireproof  floors  and 
roofs.  It  is  generally  applied  to  a  steel 
frame,  but  it  can  also  be  applied  to  re¬ 
inforced  concrete  frame  or  a  frame  of 
wood. 

It  is  a  system  which,  for  more  than 
thirty  years,  has  demonstrated  its  prac¬ 
tical  advantages  on  hundreds  of  installa¬ 
tions  scattered  throughout  the  United 
States  and  Canada  under  a  wide  extreme 
of  climatic  conditions. 


It  is  used  in — 

Office  Buildings 
Public  Buildings 
Factories 
Paper  Mills 
Theatres 
Garages 


Schools 

Hospitals 

Apartment  Houses 
Hotels 
Foundries 
Churches 


Clubs,  Etc. 


“The  principle  is  that  of  a  suspension 
bridge.  It  is  a  monolithic  gypsum  slab 
poured  in  place  on  parallel  and  uniformly 
spaced  cables,  the  ends  of  the  cables  se¬ 
curely  and  rigidly  anchored  to  the  frame  of 
the  building.  Enough  cables  are  put  in  to 
carry  the  total  load,  with  a  factor  of  safety 
of  four,  without  regard  to  *the  compres¬ 
sive  value  of  the  Metropolitan  compo¬ 
sition.  The  Metropolitan  composition  is 
CALCINED  Gypsum,  Stucco,  or  chem¬ 
ically  Ca  S  04 . 

This  composition  solidifies  so  rapidly 
that  within  fifteen  minutes  after  it  is 
poured  you  may  walk  on  it  without  leaving 
a  footprint,  and  it  is  perfectly  safe  and 
practical  as  far  as  the  strength  of  the  slab 
is  concerned  to  remove  the  forms  within 
sixty  minutes  of  the  time  the  composition 
is  poured  and  it  is  then  ready  to  receive 
the  load  for  which  it  is  designed. 


[3] 


The  following  important  installations  are 
representative  of  this  work : 

STORIES 

OFFICE  AND  OTHER  BUILDINGS  IN  NEW  YORK  CITY 


Sixty  Wall  Street,  Building .  28 

Forty-two  Broadway,  Building .  21 

Hudson  Building,  32-34  Broadway .  16 

Atlantic  Mutual  Building,  49  Wall  Street .  18 

Beaver  Building,  Beaver  and  Pearl  Streets .  16 

Singer  Building,  Broadway  and  Prince  Street .  12 

Woodbridge  Building,  William  and  John  Streets .  13 

Samson  Building,  63-65  Wall  Street .  12 

Bancroft  Building,  5-7  West  29th  Street .  10 

Stan  dish  Arms  Hotel,  Brooklyn .  12 

Republican  Club,  54-56  West  40th  Street .  12 

Garvin  Machine  Co.  Bldg.,  Varick  and  Spring  Streets .  8 

Broadway  Tabernacle,  56th  Street  and  Broadway .  7 

Hotel  Stratford,  11-13  East  32nd  Street .  13 

Astor  Apartments,  75th  Street  and  Broadway .  8 

And  many  others. 


SIMILAR  BUILDINGS  ELSEWHERE  IN  THE  U.  S. 


Richmond  Trust  Building,  Richmond,  Va .  8 

State  Office  Building,  Richmond,  Va .  12 

Marywood  College,  Scranton,  Pa .  4 

Carbondale  High  School,  Carbondale,  Pa .  3 

And  many  others. 


SIMILAR  BUILDINGS  IN  CANADA 

Central  Technical  High  School,  Toronto,  Ont .  4 

Sauvegarde  Life  Building,  Montreal .  9 

Royal  Bank  Building,  Montreal .  4 

And  many  others. 


INDUSTRIAL  BUILDINGS  IN  U.  S. 

Bureau  of  Yards  and  Docks,  U.  S.  Navy,  15  Installations,  1,556,000  sq.  ft. 
Bethlehem  Steel  Co.,  24  Installations,  1,629,000  sq.  ft. 

Baldwin  Locomotive  Works,  15  Installations,  1,391,000  sq.  ft 
Ingersoll-Rand  Co.,  5  Installations,  595,000  sq.  ft. 

Scoville  Mfg.  Co.,  6  Installations,  332,000  sq.  ft. 

Midvale  Steel  Co.,  6  Installations,  468,000  sq.  ft. 

National  Tube  Co.,  2  Installations,  230,000  sq.  ft. 

American  Locomotive  Co.,  2  Installations,  350,000  sq.  ft. 

And  many  others. 

INDUSTRIAL  BUILDINGS  IN  CANADA 

Abitibi  Power  &  Paper  Co.,  Iroquois  Falls,  Ont. 

St.  Lawrence  Paper  &  Pulp  Co.,  Three  Rivers,  Que. 

Wyagamac  Pulp  &  Paper  Co.,  Three  Rivers,  Que. 

And  many  others. 

(For  more  complete  list  of  Installations,  see  Pages  46  to  5;) 


HEIGHT 
IN  FEET 

340 
24O 
221 
260 
200 
170 
170 
1 6 1 

H3 

140 

100 

100 

100 

100 

100 


1 10 
145 

65 

50 


65 

1 10 
70 


METHOD  OF  APPLICATION 


McGraw-Hill  Bldg.,  New  York,  N.  Y. 


1- FORMING 

The  first  step  in  applying  the  Metro¬ 
politan  System  is  to  erect  wooden  forms 
or  centers  in  which  the  Metropolitan 
composition  is  later  to  be  poured.  This 
form  work  is  similar  to  that  used  in  con¬ 
crete  construction. 

The  above  photograph  shows  the  con¬ 
struction  and  placement  of  such  forms 
on  a  roofing  job  undertaken  for  the 
McGraw-Hill  Building  in  New  York  City. 


Projectile  Plant,  Charleston,  W.  Va. 


2-  REINFORCEMENT 

Cables  composed  of  twisted  galvanized 
wire  are  laid  parallel  and  carried  over 
the  top  of  the  beams  or  purlins  to  the 
outside  wall  beams  or  end  purlins  and 
there  secured  by  strong  anchors.  These 
cables  are  then  uniformly  deflected  by 
means  of  a  round  iron  deflection  bar 
placed  midway  between  purlins. 

The  above  photograph  shows  the  an¬ 
choring  of  these  cables  to  a  wall  beam 
in  work  undertaken  for  the  Projectile 
Plant  in  Charleston,  W.  Va. 


Is] 


^ . 

df  METROPOLITAN  \ 
SYSTEM  m 

FLOORS  and  HOOFS 


METHOD  OF  APPLICATION 


State  Office  Bldg.,  Richmond,  Va. 

3 -POURING 

The  Metropolitan  composition  is  poured 
in  place  and  brought  to  uniform  surface, 
forming  a  slab  ready  to  receive  the  sleeper 
fill  in  the  case  of  floors  or  the  grading  and 
finished  waterproofing  in  the  case  of  roofs. 
The  above  photograph  shows  the  pouring, 
spreading  and  trowelling  of  the  Metro¬ 
politan  composition  on  the  State  Office 
Building,  Richmond,  Va. 


Haddon  Hall,  Atlantic  City,  N.  J. 


4 -REMOVAL  OF  FORMS 

The  composition  sets  so  fast  that  it  is 
perfectly  safe  and  practical  to  remove 
the  forms  within  sixty  minutes  after  the 
composition  is  poured.  A  fair  idea  of 
the  smooth  and  pleasing  appearance  of 
the  soffit  of  the  slab  is  shown  by  the 
above  photograph  ot  the  intrados  of  the 
arched  Metropolitan  slab  (43'  6"  radius) 
forming  the  ceiling  of  the  Tea  Room  of 
Haddon  Hall,  Atlantic  City,  N.  J., 
Rankin,  Kellogg  &  Crane,  architects. 


[6] 


THE  ADVANTAGES  OF  THE 
METROPOLITAN  SYSTEM 


Several  very  distinct  advantages  may  be  obtained  by  the  use  of  the 

Metropolitan  System 

1 —  SAFETY  AND  STRENGTH  (See  page  8) 

Galvanized  steel  wire  cables  support  the  entire  load 
in  tension.  As  is  universally  known,  steel  wire  is 
not  only  the  strongest,  but  it  is  also  the  most  eco¬ 
nomical  form  in  which  steel  can  be  used,  especially 
when  used  in  tension.  The  cables  are  stretched  and 
deflected  before  the  composition  is  poured,  so  that 
the  reinforcement  is  easy  to  inspect  and  the  human 
equation  is  reduced  to  a  minimum. 

2 —  ECONOMY  OF  FIRST  COST 

(a)  Light  Weight  (See  Page  9) 

(b)  Rapidity  of  Construction  (See  Page  9) 

(c)  SmallerTonnageofSteel  Required  (See  Page9) 

3 —  NON-CONDUCTIVITY  (See  Page  10) 

(a)  With  consequent  Absence  of  Condensation 
(See  Page  10) 

(b)  And  Substantial  Reduction  in  Heating  Cost 
(See  Page  1 1) 

4—  DURABILITY  (See  Page  11) 

5 —  FIRE  RESISTANCE  (See  Page  12) 

6 —  LOW  MAINTENANCE  (See  Page  12) 

7 —  REPLACEMENT  (See  Page  12) 

8—  SERVICE  (See  Page  13) 

9 —  GUARANTEED  CONSTRUCTION  (See  Page  1 3) 

These  various  advantages  are  described  in  detail  on 
the  following  pages  as  noted  above. 


1  —  Safety  and  Strength 

THE  SUSPENSION  SYSTEM 

The  suspension  principle — a  strictly 
metal  construction — makes  the  Metro¬ 
politan  System  the  safest  and  strongest 
type  of  roof  and  door  construction  on  the 
market. 

Stresses  are  calculated  by  approved  en¬ 
gineering  formulae  and  strength  may 
therefore  be  determined  with  accuracy. 

The  loads  are  supported  entirely  by 
steel  wire  cables  rigidly  anchored  at  each 
end  and  brought  into  uniform  dedection 
and  tension.  Note  the  dedection  bar  in 
accompanying  photograph . 

The  crushing  strength  of  the  Metro¬ 
politan  Composition  is  about  400  lbs. 
per  square  inch  but,  unlike  concrete  con¬ 
struction,  the  strength  of  the  composition 
is  entirely  disregarded,  thus  providing  an 
additional  factor  of  safety.  The  com¬ 
position  is  used  merely  to  protect  the 
wires  and  structural  framework  against 
dre  and  corrosion  and  to  distribute  the 
load  while  the  support  of  the  load  is  left 
entirely  to  the  strength  of  the  galvanized 
steel  cables. 

The  above  may  be  demonstrated  by  in¬ 
stalling  the  cables  over  a  given  area  of  the 
roof,  anchoring  the  cables  at  the  ends  in 
the  usual  manner,  and  then  covering  the 
cables  with  a  tarpaulin  and  applying  the 
total  load  for  which  the  cable  spacing  is 
designed.  This  will  clearly  show  that  the 
strength  of  the  composition  is  omitted 
and  that  the  cables  safely  carry  all  the 
load.  This  is  important  because  all 
gypsum  materials  when  wet  get  soft,  and 
lose  some  of  their  already  low  compressive 
value.  In  case  of  the  Metropolitan 
System  this  does  not  affect  the  strength  of 


Galvanized  Steel  Wire  Reinforcement 
American  Locomotive  Works,  Schenectady,  N.  Y. 


Additional  Story — Curtis  Publishing  Co.  Bldg. 


Curtis  Publishing  Co.,  Philadelphia,  Pa. 


[8] 


Swarthmore  Apartments,  Philadelphia,  Pa. 


the  slab,  as  the  strength  of  the  slab  depends 
on  the  cables  alone.  The  composition, 
however,  does  add  strength  to  the  slab 
and  increases  the  factor  of  safety,  but  this 
increase  is  ignored  in  design. 

2  —  Economy  of  First  Cost 

THE  LIGHT  WEIGHT  SAVES  MONEY 
AND  INCREASES  SAFETY 

Weighing  but  5  pounds  per  square  foot 
per  inch  of  thickness,  the  Metropolitan  is 
the  lightest  type  of  fireproof  floor  and 
roof  construction  on  the  market  at  the 
present  time.  The  minimum  thickness  is 
3".  This  extreme  lightness  in  weight 
saves  money  and  increases  safety  not 


only  in  new  construction  but  in  replace¬ 
ments  and  additions  to  old  buildings. 
Wooden  roofs,  for  instance,  can  be  re¬ 
placed  by  the  Metropolitan  System  with¬ 
out  either  strengthening  or  overloading 
the  existing  frame. 

Should  additional  floors  be  required  as 
in  the  case  of  the  building  for  the  Curtis 
Publishing  Co.,  Philadelphia,  shown  on 
page  8,  the  Metropolitan  System  proves 
the  most  economical  and  safest  form  of 
construction. 

RAPIDITY  OF  CONSTRUCTION 

Metropolitan  floors  and  roofs  may  be 
installed  more  rapidly  than  any  other 
type  of  fireproof  construction.  The  Metro¬ 
politan  composition  sets  so  fast  that  one 
may  walk  on  it  fifteen  minutes  after  it  is 
poured  without  leaving  a  footprint,  and 
it  is  perfectly  safe  and  practical  to  remove 
the  forms  within  sixty  minutes  after  the 
composition  has  been  poured  and  obtain 
the  full  live  load  for  which  the  slab  is 
designed. 

The  accompanying  photograph  of  the 
Swarthmore  Apartments,  N.  E.  corner 
22nd  and  Walnut  Streets,  Philadelphia, 
Clinton  &  Russell,  New  York,  architects, 
stands  as  a  monument  to  the  speed  with 
which  this  system  may  be  installed,  as 
this  job  was  put  up,  twelve  floors  and 
roof,  in  fourteen  working  days. 

See  progress  pictures,  page  17. 

The  Metropolitan  composition  sets  so 
fast  that  it  sets  before  it  freezes.  We  have 
satisfactorily  installed  slabs  when  the 
temperature  was  350  below  zero. 

SMALLER  TONNAGE  OF  STEEL 
REQUIRED 

The  extreme  lightness  in  weight  of 
Metropolitan  composition  makes  possible 


[9] 


-''''METROPOLITAN 
SYSTEM 

FLOORS  an  PROOF 
I^£vv  yorkTity 


a  substantial  saving  in  the  frame,  and  in 
the  case  of  an  all  steel  building,  the  use 
of  the  Metropolitan  System  enables  the 
builder  to  save  as  much  as  35%  of  the 
steel  called  for  by  the  original  design 
for  concrete  or  hollow  tile. 

\\  henever  invited  to  do  so  we  cheerfully 
submit  with  our  proposal  a  guaranteed 
estimate  of  the  number  of  tons  of  structural 
steel  that  may  be  saved  by  the  use  of  the 
Metropolitan  system. 

3  —  Non-Conductivity  or 
Insulating  Value 

The  Metropolitan  composition  consists 
of  calcined  gypsum  and  wood  planer 
chips.  It  develops  the  highest  degree  of 
fire  resistance,  non-conductivity  or  in¬ 
sulating  value  ever  obtained  in  any 
structural  material. 

The  wood  chips  give  the  Metropolitan 
composition  a  degree  of  toughness  and 
elasticity  far  greater  than  is  found  in  any 
other  fireproof  material.  The  quantity 
being  small,  “ . the  chips  are  com¬ 

pletely  insulated  by  the  large  mass  of 
gypsum,  and  in  no  way  detract  from  the 

fire  resistance  or  insulating  value . ” 

Abundant  evidence  of  this  has  been  given 
in  every  test  or  actual  fire  to  which  the 
Metropolitan  composition  has  been  sub¬ 
jected. 

I  he  table  at  the  right  shows  the  exact 
difference  in  insulating  value  of  several 
materials,  including  the  Metropolitan 
composition. 

A  series  of  interesting  tests  were  con¬ 
ducted  by  Prof.  C.  L.  Norton  of  the 
Massachusetts  Institute  of  Technology. 

I  hese  tests  prove  conclusively  that  as  a 
non-conductor  the  Metropolitan  composi¬ 


tion  is  decidedly  superior  to  any  other 
fireproof  material  on  the  market. 

Non-conductivity  is  vitally  important 
not  only  as  a  protection  against  fire,  but 
to  prevent  condensation  within  a  building 
as  well  as  to  conserve  heat. 

ABSENCE  OF  CONDENSATION 

Condensation  troubles  can  be  traced 
directly  to  materials  possessing  an  in¬ 
adequate  insulating  value.  Differences 
between  interior  and  exterior  tempera¬ 
tures  cause  moisture  to  collect  on  soffits 
of  slabs  with  consequent  annoyance  and 
damage. 

This  is  particularly  true  in  a  plant  such 
as  a  paper  or  silk  mill,  where  moisture 
arising  in  the  machine  room,  finishing 
room,  shipping  room,  screen  room,  grind¬ 
er  room,  jordan  room,  boiler  house,  or 
jigger  dye  house  will  cause  excessive 
condensation  and  ceiling  drip,  with  result¬ 
ant  damage  to  paper,  silk,  or  machinery. 
All  such  troubles  are  eliminated  by  the  use 


HEAT  TRANSMISSION 
THROUGH  ROOFS 

B  .t.  u.  transmitted  for  1° 
Construction  differencein  temp. ofair  in- 
side  and  out,  per  24  hours. 


No.  1  Metropolitan  Composition  4"  thick 

with  5-ply  Tar  and  Felts .  4.08 

No.  2  Metropolitan  Composition  thick 

with  5-ply  Tar  and  Felts .  4-55 

No.  3  Metropolitan  Composition  3"  thick 

with  5-ply  Tar  and  Felts .  5 . 14 

No.  4  Hollow  terra  cotta  tile  3"  thick  with 

5-ply  Tar  and  Felts .  8.35 

No.  5  Stone  Concrete  6"  thick  wi  th  5-ply 

Tar  and  Felts .  1 1 . 7 

No.  6  Cinder  Concrete  4"  thick  with  5-ply 

Tar  and  Felts .  12.2 

No.  7  Stone  Concrete  4"  thick  with  5-ply 

Tar  and  Felts .  13  8 

No.  8  Cinder  Concrete  3"  thick  with  5-ply 

Tar  and  Felts .  14 . 1 

No.  9  Stone  Concrete  3"  thick  with  5-ply 

Tar  and  Felts .  15 . 2 

No.  10  Asbestos  Protected  Metal  yi"  thick  23.7 
No.  11  Stone  Concrete  4"  thick  with  1" 

cork  and  5-ply  Tar  and  Felts .  5  .08 


of  the  Metropolitan  system.  Striking 
proof  is  found  in  several  large  plants  in 
Canada.  Canada  is  cited  as  an  illus¬ 
tration  because  of  the  very  vigorous 
winters  experienced  there.  In  one  north¬ 
ern  plant  it  was  found  necessary  to  install 
a  hung  ceiling  about  6'  below  the  concrete 
roof  of  the  Turbine  room  to  prevent 
condensation.  In  1914  this  Company 
built  their  largest  Turbine  Station,  in¬ 
stalling  the  Metropolitan  System  without 
the  hung  ceiling.  With  the  temperature 
under  the  slab  exceeding  ioo°  Fahr.  and 
an  outside  temperature  of  30°  below 
zero,  there  has  not  been  the  slightest 
trace  of  condensation  on  the  under  side 
of  the  Metropolitan  slab. 

REDUCTION  OF  HEATING  COST 

With  the  exceptionally  high  insulating 
value  of  the  Metropolitan  slab  it  is  clear 
there  must  be  a  considerable  saving, 
not  only  on  the  first  cost  of  installing  the 
heating  equipment,  but  also  in  the  annual 
consumption  of  coal. 

As  compared  with  cinder  concrete  in 
moderate  climates,  it  has  been  estimated 
that  Metropolitan  construction  saves  ap¬ 
proximately  10%  in  the  initial  cost  of 
the  heating  plant  and  from  20%  to  25% 
in  annual  coal  consumption. 

A  typical  instance  is  that  of  a  Metro¬ 
politan  Roof  which  saved  the  owners 
from  1,200  to  1,500  tons  of  coal  per  year 
while  the  heating  plant  bid  was  reduced 
by  #1,000  on  a  building  of  approximately 
50,000  feet  roof  area. 

In  summer,  when  heating  is  not  a 
factor,  the  Metropolitan  slab  insures  a 
cooler  building  with  greater  comfort  to 
the  workmen.  This  is  of  great  impor¬ 
tance  in  machine  shops  of  all  kinds. 


Machine  Room,  P.  H.  Glatfelter  Co.,  Spring  Grove,  Pa. 


4 —  Durability 

PRESERVATION  OF  STEEL  WORK 

Metropolitan  System  Floors  and  Roofs 
have  been  in  active  service— under  the 
most  severe  conditions — for  over  thirty- 
five  years  and  are  today,  without  excep¬ 
tion,  in  as  good  a  condition  as  when 
installed.  Gypsum,  the  principal  ingre¬ 
dient  of  the  Metropolitan  composition,  is 
recognized  by  authorities  as  better  for  the 
preservation  of  metal  against  corrosion 
than  any  other  available  fireproof  ma¬ 
terial. 


Machine  Room,  Price  Bros.,  Kenogami,  £)ue. 


I  I 


Corcoran  Art  Gallery,  Washington,  D.  C. 


superiority,  not  only  in  point  of  fire  resistance 
but  in  the  non-conductivity  of  heat. 

The  accompanying  photograph,  for  instance, 
shows  Metropolitan  Construction  which  had 
been  subjected  to  a  week  of  sulphur  fire  with 
floors  heavily  loaded.  As  reported  by  the  New 
York  Board  of  Fire  Underwriters — -“The  floor 
system  performed  its  function  adequately  as  re¬ 
gards  fire  resistance  .  .  .  the  floor  panels,  girders 
and  beams  resisted  the  fire  well,  considering  the 
intense  heat  due  to  the  long  continued  high  tem¬ 
peratures  from  burning  jute  and  sulphur.” 

More  similar  evidence  can  be  provided.  Re¬ 
sults  of  actual  tests  are  given  on  pages  36  and  37. 


For  the  benefit  of  prominent  engineers,  build¬ 
ing  code  revision  committees  and  others  inves¬ 
tigating  this  subject,  we  have  frequently  cut  out 
sections  of  Metropolitan  Floors  and  Roofs 
which  have  been  installed  for  many  years.  In 
every  case ,  the  embedded  beams  and  girders ,  as 
well  as  the  steel  cables ,  have  been  found  in  perfect 
condition.  This  photograph  of  the  Corcoran 
Art  Gallery  in  Washington  shows  a  twenty- 
year  old  job. 

5 — Fire  Resistance 

In  both  roof  and  floor  construction,  the  Metro¬ 
politan  System  has,  in  numerous  scientific  tests 
as  well  as  in  actual  fires, clearly  demonstrated  its 


48th  Street  and  East  River  Warehouse,  New  York  City 


6  —  Low  Maintenance 

Elasticity  is  necessary  to  good  floor  and  roof 
construction,  particularly  where  heavy  manu¬ 
facturing  processes  cause  shocks,  vibrations  and 
unequal  stresses.  It  is  even  more  essential  where 
columns  supporting  roof  trusses  must  also  carry 
heavy  traveling  cranes. 

The  vibrations  caused  by  cranes  or  other 
heavy-moving  loads  are  certain  to  crack  an  in¬ 
elastic  construction. 

The  wood  chips  in  the  Metropolitan  Compo¬ 
sition  provide  elasticity  and  Metropolitan  Floors 
and  Roofs  remain  intact  under  the  severest  con¬ 
ditions,  thus  eliminating  the  annoyance  and  ex¬ 
pense  of  constant  repairs. 

There  is  a  plant  in  New  York  subjected  to  un- 
unusually  severe  vibration.  This  is  the  building 
of  the  Garvin  Machine  Works  where  vibration 
from  machinery  subjects  the  floors  and  roofs  to 
an  exceptionally  heavy  and  continuous  strain. 
Metropolitan  floors  and  roofs  were  installed  19 
years  ago.  They  are  still  in  use  and  show  no 
cracks. 

7  —  Replacement 

Not  only  is  the  Metropolitan  System  low  in 
first  cost;  not  only  dees  it  insure  economy  in 
maintenance,  but  it  provides  the  most  satis¬ 
factory  and  economical  system  to  install  in 
buildings  where  the  floor  or  roof  are  of  other 
materials  and  must  be  replaced.  The  photo¬ 
graph  on  the  next  page  shows  such  a  Metro- 


politan  installation.  Our  engineers  will  be  glad  to 
consult  with  you  about  any  problems  connected 
with  floors  or  roofs. 

8  —  Service 

This  company  regards  each  contract  as  a  sale 
of  service  in  addition  to  the  sale  of  material  and 
workmanship.  Nor  is  the  delivery  of  service 
completed  with  acceptance  of  the  contract. 
It  is  a  service,  in  other  words,  which  is  ren¬ 
dered  not  only  during  the  work  but  before  and 
after  its  execution. 

Before  starting  work,  for  instance,  our  engi¬ 
neers  will  be  glad  to  consult  with  you  and  to 
submit,  without  charge  or  obligation  of  any 
kind,  their  recommendations  for  the  floor  and 
roof  construction  of  new  buildings  or  for  the 
alteration  or  replacement  work  in  buddings  now 
standing. 

During  execution  of  the  work  they  maintain 
a  constant  supervising  service  assuring  you  the 
greatest  speed  and  economy  and  the  strictest  ad¬ 
herence  to  design  and  specifications. 

After  completion  of  the  work  the  interest  of 
our  entire  organization  is  just  as  keen  as  when 
starting  the  job.  Our  records  for  service  are  more 
valuable  to  us  than  our  trade-mark,  patents, 
capital  and  surplus.  We  guard  them  jealously, 
and  on  completed  jobs,  whether  one  or  thirty 
years  after  completion  we  stand  always  ready 
to  serve  to  the  fullest  extent  of  our  capacity. 

You  may,  for  instance,  wish  to  cut  additional 
ventilators,  skylights,  stair  wells  or  other  open¬ 
ings  in  the  Metropolitan  Slab.  Just  let  us  know 
and  a  Metropolitan  Engineer  will  call  and  super¬ 
vise  the  cutting,  splicing  and  re-anchoring  of  the 
cables.  You  may  wish  to  impose  additional 
loads  and  a  Metropolitan  Engineer  will  tell  you 
how  this  can  be  done. 

A  system  without  a  service  is  a  ship  without 
a  pilot.  We  furnish  you  with  both. 

9  —  Guaranteed  Construction 

We  do  not  license  nor  permit  the  installation 
of  Metropolitan  Floors  and  Roofs  by  any  organ¬ 
ization  other  than  our  own  Construction  Depart¬ 
ment.  With  a  carefully  selected  and  trained 
personnel,  this  Department  has  an  unequalled 


Disston  Saw  Works,  Tacony,  Fa. 


record  for  the  rapid  and  efficient  execution  of 
contracts,  regardless  of  location. 

Installation  by  our  trained  men,  under  thor¬ 
oughly  competent  foremen  and  superintendents, 
and  frequent  inspections  by  our  Engineering  De¬ 
partment  carry  to  the  engineer  and  owner  a 
definite  assurance  of  speedy  construction  and 
skilled  workmanship  while,  through  the  organi¬ 
zation  of  our  forces,  we  are  able  to  install  Metro¬ 
politan  System  Floors  and  Roofs  at  the  absolute 
minimum  cost. 

To  this  policy  we  attribute  the  fact  that  no 
Metropolitan  Floor  or  Roof  has  ever  failed  in  a 
test  or  an  actual  fire  and  because  we  take  the  full 
responsibility  for  the  work  we  are  able  to  make 
the  accompanying  guarantee. 


GUARANTEE 

We  guarantee  every  square  foot  of 
Metropolitan  Floor  and  Roof  Construc¬ 
tion  which  we  install  against  any  defects 
in  workmanship,  material  or  design  and 
against  failure  from  any  cause,  under 
the  conditions  for  which  it  is  designed. 


1 1 3  1 


THE  METROPOLITAN  SYSTEM 
AS  APPLIED  TO  FLOORS 


HE  Metropolitan  System  is  equally  valuable 


X  whether  applied  to  floors  or  roofs. 

Fire  resistance,  for  instance,  is  as  important  in  one 
as  in  the  other  and  so  are  safety,  strength,  economy  in 
first  cost  and  maintenance,  rapidity  of  construction, 
non-conductivity,  absence  of  condensation,  reduction 
of  heating  costs,  preservation  of  steel  work  and  ability 
to  stand  up  under  vibration. 

It  so  happens,  however,  that  some  have  heard  of  the 
Metropolitan  System  only  in  connection  with  roofs 
while  others  have  heard  of  it  only  in  connection  with 
floors  and  it  should,  of  course,  be  considered  in  both 
connections  where  either  roofs  or  floors  or  both  are  to  be 
built. 

In  general,  the  method  of  application  is  the  same  in 
each  case  and  differs  only  in  structural  details. 

For  instance  a  floor  slab  supported  on  beams  6'  apart 
in  the  clear ,  to  support  a  total  live  and  dead  load  of 
200  lbs.  per  square  foot  must  have  cable  spacing  not 
more  than  i"  on  centre  and  the  slab  must  be  not  less 
than  thick,  but  a  roof  slab  supported  on  purlins 
spaced  6'  apart  in  the  clear  to  support  a  total  live  and 
dead  load  of  52  lbs.  per  square  foot  must  have  cable 
spacing  of  3"  and  slab  3"  thick.  (See  page  39  for  floor 
specifications.) 

The  following  pages  illustrate  the  wide  variety  of 
buildings  in  which  the  Metropolitan  System  of  floor  and 
roof  construction  has  been  used.  Some  are  recent  jobs. 
Others  have  withstood  the  severest  sort  of  service  for 
several  years.  These  give  a  practical  demonstration  of 
the  durability  ol  the  Metropolitan  System  of  fireproof 
floor  and  roof  construction,  which  has  more  than  thirty 
years  of  continuous  service  behind  it. 


[1+] 


State  Office  Building,  Richmond,  Va. 
Architects — Carneal  &  Johnson 
Builders — John  T.  Wilson  Co.,  Inc. 


Richmond  Trust  Co.,  Richmond,  Va. 
Architects — Starret  &  Van  Vleck 
Builders — John  T.  Wilson  Co.,  Inc. 


Completed  in  Eight  Weeks 
State  Office  Building,  Richmond,  Va. 


Completed  in  Seven  Weeks 
Richmond  Trust  Co.,  Richmond,  Va. 


Dome,  Marywood  College,  Scranton,  Pa. 

Second  Largest  Span  in  U.  S.  Diameter  of  Dome,  76'-on 


Marywood  College,  Scranton,  Pa. 


[16] 


March  30th 


April  1st 


April  5th 


April  7th 


p  a*  Ui 

April  9th 


Swarthmore  Apartments 
Philadelphia,  Pa. 


Metropolitan  floors  completed  at  the  rate  of  one 
per  day — a  notable  achievement  in 
rapid  construction. 


April  14th 


The  Finished  Building 


[17] 


^METROPOLITAN  % 
v SYSTEM  J ) 

\  '•  - .  FLOORS  and  ROOFS  / 


hew  YoiiKcrTL 


Thalheimer  Store,  Richmond,  Va. 


Underside  of  floors  when  forms  are  removed 
Thalheimer  Store,  Richmond,  Va. 


[18] 


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Aero  Photograph  of  New  York  City  showing  buildings  using  the  Metropolitan  System 


1.  Produce  Exchange  1922 

7.  U.  S.  Food  Products  Bldg.  ] 

2.  Hudson  Bldg.  1897 

8.  Samson  Bldg.  1897 

3.  42  Broadway  Bldg.  1899 

9.  Woodbridge  Bldg.  1898 

4.  Liberty  Tower  (Block)  1912 

10.  Bishop  Bldg.  1897 

5.  Atlantic  Mutual  Bldg.  1898 

11.  Beaver  Bldg.  1900 

6.  60  Wall  Bldg.  1897 

12.  Home  Insurance  Bldg.  1900 

I19] 


METROPOLITAN 
SYSTEM 

FlOOItS  an  n  ROOFS 
J^EW  Y0I1K  crrt- 


Sauvegarde  Life  Insurance  Bldg.,  Montreal,  £)ue. 


Additional  Story — Produce  Exchange,  New  York,  N.  Y. 


[20] 


THE  METROPOLITAN  SYSTEM 
AS  APPLIED  TO  ROOFS 


FOR  a  Metropolitan  roof  the  slab  may  be  thinner 
and  the  cables  spaced  farther  apart  than  for  floors, 
provided  the  total  live  and  dead  load  capacity  require¬ 
ments  are  such  as  to  make  this  possible.  (See  page  39) 

In  cases  where  desirable  or  necessary,  wood  sleepers 
may  be  toe  nailed  to  the  roof  slab  as  well  as  to  the 
floors.  Nailing  strips  are  recommended  where  tin,  slate 
or  other  materials  are  to  be  applied. 

Many  millions  of  square  feet  of  Metropolitan  Roof 
have  been  constructed  in  this  country  and  in  Canada. 
It  is  applicable  to  Flat  Roofs,  Monitor-type  Roofs, 
Saw-tooth  Roofs  and  every  other  known  type  of  roof 
employed  for  office,  industrial,  commercial,  residential 
and  public  buildings. 

In  no  case  have  these  roofs  tailed  to  give  full  satis¬ 
faction  under  the  conditions  for  which  they  were 
designed. 

A  number  of  different  types  serving  in  different 
localities  under  different  conditions  are  illustrated  on 
the  following  pages.  You  will,  no  doubt,  find  there  a 
type  similar  to  the  type  you  contemplate  building  and 
we  will  be  glad  to  refer  you  to  hundreds  of  others. 


[  21  ] 


[  22] 


Naval  Ordnance  Plant,  South  Charleston,  W.  Va. 


Pipe  and  Jacket  Shop,  Baldwin  Locomotive  Works 
Eddystone,  Pa. 


Repair  Erecting  Shop,  American  Locomotive  Works 
Schenectady,  N.  Y. 


[23] 


-  ''''O/,/ 

'/'‘metropolitan'^ 

SYSTEM 

flooi^and  Roofs 


EW  YOHK  ClTY_ 


Ingot  Mould  Bldg.,  Bethlehem  Steel  Works 
South  Bethlehem,  Pa. 


Erecting  Shop  No.  2,  Baldwin  Locomotive  Works 
Eddystone,  Pa. 


[24l 


American  Chain  Company 
York,  Pa. 


Finishing  Building,  Midvale  Steel  Co. 
Nicetovvn,  Pa. 


[25] 


,  METROPOLITAN 
SYSTEM 

ROO I  $  an  d  ROC  FS 
JjBW  YORK  CVtt. 


No.  6  Lap  Weld  Building  and  Mill  Transept  Building 
National  Tube  Co.,  Lorain,  Ohio 


Power  House,  Standard  Oil  Co. 
Elizabeth,  N.  J. 


[26] 


Slone  &  Webster ,  Engineers 


Power  Plant,  Hartford  Electric  Light  Co.,  Hartford,  Cc 


Pantages  Theatre,  Toronto,  Ont. 


[27] 


P.  H.  Glatfelter  Co.,  Spring  Grove,  Pa. 


Abitibi  Power  &  Paper  Co.,  Iroquois  Falls,  Ont. 


8] 


St.  Maurice  Pulp  &  Paper  Co.,  Three  Rivers,  Que. 


St.  Lawrence  Pulp  &  Paper  Co.,  Three  Rivers,  Cue. 


[29  ] 


Roof  of  Conveyor  Gallery  for  Harbour  Commission  of  Montreal,  Que. 


U.  S.  Airplane  Hangar,  Langley  Field,  Hampton,  Va. 


[30] 


TECHNICAL  DATA 

ON  THE 

METROPOLITAN  SYSTEM 

TESTS  AND  REPORTS 

THERE  have  been  a  considerable  number  of  scien¬ 
tific  tests  conducted  to  determine  the  value  of  the 
Metropolitan  composition  in  comparison  with  other 
fireproofing  materials.  These  are  supplemented  by 
authoritative  reports  drawn  up  after  the  investigation  of 
actual  fires  and  other  investigations  made  with  regard 
to  Metropolitan  Floors  and  Roofs  under  actual  service 
conditions. 

Extracts  from  certain  of  these  tests  and  reports  are 
quoted  herewith  and,  in  substantiation  of  our  statement 
that  the  Metropolitan  System  is  “The  Fireproofing 
System  with  Thirty  Years  of  Proof,”  we  will  start 
with — 


The  Earliest  Reports  on  the 

METROPOLITAN  SYSTEM 

Extracts  from 

“The  Fireproofing  of  Steel  Buildings” 

BY  J.  K.  FREITAG,  C.E. 

Tests  conducted  in  1894 

“In  1894  tests  were  made  at  Trenton,  N.  J.,  to 
determine  the  relative  values  of  the  flat-tile  arch,  the 
segmental-tile  arch,  and  the  Metropolitan  type  of 
suspended  flooring. 

“Test-arch  No.  1  consisted  of  a  flat-tile  arch,  side- 
construction,  10-in.  blocks,  span  4  ft.,  11  ^  ins.  The 
load  was  applied  at  the  quarter  and  three-quarter 
points  of  span.  Tinder  a  total  load  of  6,689  lbs.,  or 
301  lbs.  per  sq.  ft.,  the  joints  commenced  to  open  at 
the  under  side  of  the  key  block.  Under  a  total  load  of 


L  3 1 1 


Fig.  71. — Metropolitan  Floor — Panelled  Construction. 


8,599  lbs.,  or  387  lbs.  per  sq.  ft.,  the  skew-backs  were 
crushed  and  the  arch  was  entirely  destroyed. 

“Test  Arch  No.  2  was  a  segmental  side-construction 
tile  arch,  span  5  ft.  2  ins.,  rise  6  ins.,  thickness  6  ins. 
Under  a  loading  of  6,942  lbs.,  or  301  lbs.  per  sq.  ft., 
the  joints  commenced  to  open,  and  at  9,492  lbs.,  or 
41 1  lbs.  per  sq.  ft.,  the  skew-backs  were  broken  as 
before. 

“For  the  test  of  the  Metropolitan  Floor,  the  slab 
used  consisted  of  a  mixture  of  five  parts  of  plaster  of 
Paris  by  weight  to  one  part  of  wood  shavings,  with 
sufficient  water  to  bring  the  mass  to  the  consistency  of 
thin  paste.  The  wires  used  were  spaced  about  one 
inch  centers,  hooked  over  the  beam  flanges.  The  arch¬ 
slab  was  4  ins.  thick,  span  5  ft.  A  section  of  the  arch 
2  ft.  6p2  ins.  long  was  cut  out  on  the  completion  of  the 
sample,  and  the  whole  of  this  detached  area  was  loaded 
for  the  test.  Cracks  appeared  under  a  load  of  735  lbs. 
per  sq.  ft.  Under  a  load  of  1,200  lbs.  per  sq.  ft.,  the 
deflection  was  1  17/32  ins. 

“A  test  for  impact  was  also  made  on  a  section  of  the 
Metropolitan  floor,  also  a  fire-test,  for  which  an  arch 
of  5  ft.  6  in.  span  was  loaded  to  200  lbs.  per  sq.  ft. 
uniform  load,  with  fire  sustained  directly  beneath 
the  arch  for  four  hours.  The  results  were  considered 
highly  satisfactory 


[3  U 


J.  K.  Freitag 


EXTRACTS  FROM  REPORT  ON 

HEAT  INSULATION  VALUE  OF 
METROPOLITAN  COMPOSITION  FLOORS 

By  C.  L.  NORTON 

Roger’s  Laboratory  of  Physics 
Massachusetts  Institute  of  Technology 
Tests  conducted  from  1914  to  1916 


“The  effectiveness  of  a  roof  in  prevent¬ 
ing  the  flow  of  heat  through  it  is  of  im¬ 
portance  mainly  from  two  considerations. 
First,  because  a  roof  which  is  a  good 
insulator  saves  cost  of  installation  and 
operation  of  the  heating  plant,  and 
second,  because  a  roof  of  better  insulating 
value  is  likely  to  become  less  trouble¬ 
some  from  condensation  of  moisture  upon 
its  under  surface. 

“For  the  purpose  of  determining  the 
general  thermal  properties  of  the  Metro¬ 
politan  System  of  Roofs,  specimens  of 
Metropolitan  composition  slabs  were  sub¬ 
mitted  by  the  manufacturers,  the  Keystone 
Fireproofing  Company  of  New  York. 
Among  the  materials  tested  were  the 
following: 

MATERIALS  EXAMINED 

Metropolitan  Composition 
Terra  Cotta  Hollow  Tile 
Portland  Cement  Concrete 
Tar  and  Gravel  Roofing 
Spruce  Plank 
Oak  Plank 

Compressed  Sheet  Cork 
Asbestos  Protected  Metal 

METHOD  OF  TESTING 

“Specimens  of  various  sizes  up  to  48" 
square  and  4  y2"  in  thickness  were 
tested,  and  subsequently  an  experimental 
roof  of  concrete  was  built  to  check  the 
values  obtained  with  the  smaller  labora¬ 


tory  specimens.  This  slab  was  made  the 
roof,  or  cover,  of  a  box  whose  floor  and 
walls  were  built  of  thick  sheet  cork  of 
known  heat  conductivity.  Heat  was 
supplied  to  the  box  electrically  until  the 
desired  temperature  difference  between 
the  air  inside  and  outside  of  the  box  was 
reached.  From  the  electrical  supply  and 
the  known  loss  through  the  cork  floor  and 
walls,  the  amount  of  heat  flowing  out 
through  the  roof  might  be  computed. 

RESULTS 

“With  the  apparatus  described,  two 
sets  of  physical  constants  were  secured, 
one  a  series  of  values  of  the  rate  of  heat 
flow  through  the  solid  substance  of  the 
roof  slab,  usually  called  the  coefficient  ot 
thermal  conductivity;  and  second,  a  num¬ 
ber  of  values  of  the  rate  at  which  heat 
escapes  from,  or  passes  into,  a  surface, 
when  the  surface  and  the  air  surrounding 
it  are  at  different  temperatures.  These 
latter  values  are  usually  referred  to  as  the 
coefficient  of  emission  or  absorption,  and 
so  far  as  our  experiments  show  the  two 
coefficients  are  substantially  alike,  and 
will  be  considered  to  be  identical  under 
the  conditions  of  these  tests. 

“All  of  the  values  of  coefficients  in  the 
tables  are  computed  from  observations 
made  with  temperature  differences  such 
as  are  common  upon  the  surfaces  of  roofs 
and  in  the  air  in  their  immediate  neigh¬ 
borhoods.  For  the  surface  coefficients. 


differences  of  five  to  ten  degrees  were 
used,  and  the  conduction  coefficient  was 
based  upon  measurements  made  with 
differences  of  from  ten  degrees  to  one 
hundred  and  twenty. 

TABLE  1.  COEFFICIENTS  OF 
THERMAL  CONDUCTIVITY 

B.t.u.  per  sq.  ft.  per  i"  thick,  per 
Material  l0  F.  d iff.  in  temp,  of  SURFACES 

per  24  hours 


Compressed  sheet  cork .  8 

Spruce  Plank  . 18 

Metropolitan  Gypsum 

Slab .  20 

Oak  Plank . 26 

Roofing  Paper  and  Pitch.  .  ...  33 
Hollow  Tile  Terra  Cotta .  40 

Applies  only  to  3  "  tile 

Cinder  Concrete  . . 120 

Stone  Concrete .  150 

Asbestos  Protected  Metal . 196 

(for  y&"  thickness) 


“The  fig  ures  in  Table  1  do  not  involve 
any  consideration  of  the  temperature  of 
the  air  in  contact  with  the  surfaces,  but 
merely  the  temperature  of  the  surfaces 
themselves. 

“  I  he  temperatures  of  the  surfaces  just 
referred  to  are  obtained  from  the  results 
of  an  elaborate  series  of  tests,  the  sum¬ 
mary  of  the  results  of  which  is  given  in 
Table  2  below. 

TABLE  2.  COEFFICIENTS  OF 
EMISSION 

Loss  or  gain  of  heat  in  B.t.u.  per 
Nature  of  Surface  S<1-  ft-  per  24  hours  per  i°  F.  dif¬ 
ference  in  temp. of  air  and  of  surface 


Compressed  sheet  cork .  36 

Roofing  Paper .  50 

Concrete .  55 

Metropolitan  Composition .  57 

Asbestos  protected  Metal .  34 

Terra  Cotta .  ca 


“In  order  to  compute  the  heat  flow 
through  any  typical  roof  we  must  proceed 
along  the  line  of  the  following  example. 
Let  us  take  the  case  of  two  slabs,  A ,  a 
slab  of  Metropolitan  Composition,  and 
B,  a  slab  of  stone  concrete,  each  4"  thick, 
and  upon  the  surface  of  each  a  5-ply 
built-up  tar-and-felt  roofing  sheet 
thick. 


“.  .  .  if  heat  Bowed  through  slab  A 
at  the  rate  of  1  B.t.u.  per  24  hours  per 
square  foot,  it  is  due  to  a  temperature 
difference  given  by  the  following  equation: 

-  +  -  +  —  +  1  =  .245°  dif.  air  to  air 
57  20  33  50 

and  if  a  temperature  difference  of  .245  in 
the  air  on  the  two  sides  of  the  roof  will 
cause  a  flow  of  1  B.t.u.  then  a  tem¬ 
perature  difference  of  i°  will  cause 

— - —  =  4.08  B.t.u. 

•245 

to  flow. 

“Similarly  the  flow  through  slab  B  is 

1  =13.8  B.  t.  u. 

for  i°  diff.  air 
to  air. 


+ 


4 


(5  b 


GO 


+  —  +  — 
4X33  50 


“The  two  values,  4.08  and  13.8  give  the 
amount  of  heat  which  will  pass  through 
the  two  slabs  under  the  same  conditions, 
and  show  that  as  an  insulator  the  Metro¬ 
politan  roof  is  3.39  times  as  effective  as 
the  concrete. 

“In  this  manner  Table  3  has  been  com¬ 
puted,  to  show  the  relative  values  of 
some  half  dozen  of  the  roofs  tested.” 


(Table  3  is  published  on  Page  10  of  this  Catalog) 


“From  the  values  given  in  this  table 
we  may  also  estimate  the  actual  loss 
through  roofs  of  these  types  and  may 
compute  the  actual  saving  in  fuel,  if  we 
have  reliable  information  as  to  average 


temperature  conditions,  and  efficiency  of 
heating  plant.” 

CONDENSATION 

“1  he  condensation  of  moisture  on  the 
under  side  of  a  roof  begins  when  the  sur¬ 
face  has  cooled  down  to  what  is  called  the 
dew-point.  Hence  we  need  to  compute 
from  our  experimental  values  what  the 
temperature  of  the  lower  face  of  a  roof 
will  be  for  different  indoor  and  outdoor 
temperatures,  if  we  wish  to  discuss  the 
relative  freedom  from  condensation  of  the 
several  types  of  roof. 

‘‘Let  us  refer  again  to  slab  A  described 
earlier.  Since  we  know  the  value  of  its 
coefficients  we  may  show  that  the  ratio 
of  the  temperature  drop  at  the  under  sur¬ 
face  to  the  entire  temperature  difference 
between  the  air  inside  and  out,  is 
I 

57 

-  —  .072°  F, 

—  +  —  +  —  +  — 

50  57  132  29 

that  is,  for  every  degree  temperatureMif- 
ference  between  the  air  inside  and  out  the 
under  surface  of  the  roof  will  be  .072° 
cooler  than  the  air  below  it.” 

(The  experimenter  here  inserts  two  plots  for  ease  in  com¬ 
putation  and  proceeds  to  the  following  conclusion:) 

“Let  us  take  the  case  of  the  Metro¬ 
politan  roof  4"  thick  with  5-ply  top.  We 
will  assume,  for  example,  that  our  room 
temperature  is  750  F.  and  the  humidity 
is  85%.  From  Plot  2  we  find  that  the 
difference  between  the  air  temperature 
and  the  condensation  point  for  these  con¬ 
ditions  is  5.10  F.  when  the  difference  be¬ 
tween  the  indoor  and  outdoor  tempera¬ 
ture  reaches  710  F.  which  corresponds  to 
an  outdoor  temperature  of  40  F.  Similar 
deductions  may  be  made  from  these  plots 


in  reverse  order,  to  determine  permissible 
humidity  for  fixed  outdoor  temperatures. 

“It  will  be  noted  from  a  consideration 
of  Plots  1  and  2  that  with  an  ordinary 
room  temperature  there  is  no  possibility  of 
condensation  on  the  under  side  of  a  Met¬ 
ropolitan  slab  3",  3 y2"  or  4"  thick  so  long 
as  the  humidity  is  less  than  75%.” 

(Herewith  are  inserted  still  other  examples  and  the 

experimenter  concludes  his  report  as  follows:) 

“It  is  believed  that  the  figures  given 
and  the  examples  outlined  show  conclu¬ 
sively  the  very  great  effectiveness  of  the 
Metropolitan  Gypsum  Composition  roof 
slabs  in  preventing  loss  of  heat,  and  in 
greatly  diminishing  the  liability  to  con¬ 
densation  existing  in  roofs  of  less  insulat¬ 
ing  value. 

Respectfully  submitted, 
(Signed)  C.  L.  Norton.” 

(The  extracts  presented  here  are  verbatim  transcriptions 
from  Prof.  Norton’s  report.  Space  does  not  permit  re¬ 
printing  this  report  in  full.  A  complete  copy  will  be  sent 
on  request  to  all  who  are  interested.) 


Condensation  Plots  Nos.  i  and  2 


FIRE  TESTS  FOR 

BUREAU  OF  BUILDINGS 

NEW  YORK  CITY 


METROPOLITAN  Floor  Construc¬ 
tion  was  tested  with  fire  and  water 
by  the  representatives  of  the  New  York 
Building  Department.  The  following  ex¬ 
tracts  from  their  report  show  the  program 
of  the  test  and  the  results  that  were  noted. 


PROGRAM  OF  FIRE  AND 
WATER  TEST 

“Fire  to  be  applied  continuously  for  5 
hours.  A  temperature  of  2000  to  2100 
deg.  Fahr.  to  be  maintained  for  the  last 
4  hours,  endeavoring  to  secure  at  one 
interval,  if  possible,  a  temperature  of 
2200  deg.  Fahr. 

“At  the  expiration  of  5  hours,  water  to 
be  applied  through  a  1  pi"  nozzle  with  60 
lbs.  pressure  to  the  interior  for  15  min¬ 
utes;  during  the  first  5  minutes  of  which 
water  to  be  directed  against  the  ceiling, 
and  during  the  remaining  10  minutes 
against  the  walls  and  ceiling,  principally 
the  latter.  Then  the  water  to  be  shut  off 
on  the  inside  and  applied  to  the  top  of  the 
floor  for  5  minutes  under  a  low  pressure, 
flooding  same,  and  again  returning  to  the 
inside  of  the  structure  and  applied  to 
grates  to  entirely  extinguish  fire.” 


EFFECTS  OF  FIRE  AND 
WATER  TEST 

“The  beam  protection  on  the  two  center 
beams  was  gone  except  for  a  short  dis¬ 
tance  at  each  end  of  beam.  It  was  no¬ 
ticed  that  the  paint  zvas  still  to  be  seen  on 
these  beams  in  the  places  where  the  beam 
protection  had  come  off.  Material  of  arch 
between  beams  was  washed  away  in  some 
places  so  as  to  expose  wire  cables.  A 
piece  of  material  was  removed  from 
around  lower  flange  of  beam,  and  it  was 
here  observed  that  in  these  pieces  all 
combustible  material  such  as  wood  chips 
and  cocoanut  fibre,  were  burned  in  the 
lower  region,  charred  in  the  central  part 
and  nearly  intact  in  the  region  in  contact 
with  the  beam.  The  material  in  center 
bay  where  stream  of  water  did  not  reach 
was  soft  to  a  certain  depth  penetrated  by 
a  shaft  stick  to  a  depth  varying  between 
1"  and  iK".’’ 

600-POUND  LOAD  TEST 

“The  center  bay  of  the  floor  was  loaded 
with  pig-iron,  evenly  distributed  over 
whole  area  between  beams,  to  600  lbs. 
per  square  foot.  The  load  was  so  placed 
that  none  of  it  came  directly  on  the 
beams.  From  readings  taken  before  and 
48  hours  after  the  application  of  the  load 
it  was  found  that  the  center  of  bay  had 
deflected  .26  of  an  inch.” 

PERMANENT  SET  OF  BEAMS 

“After  fire  and  water  and  load  test  the 
upper  flange  of  the  two  center  beams  was 
stripped  of  all  material  and  the  permanent 
deflection  of  same  measured  and  found 
to  be:  For  the  north  beam,  none;  for  the 
south  beam,  none.” 


Fire  Test,  New  York,  N.  Y. 


(Full  report  of  these  tests  on  request) 


LOAD,  FIRE  AND  WATER  TEST 

Made  by 

HAROLD  PERRINE,  G.  E. 

Columbia  University,  New  York  City 


THE  structure,  as  well  as  the  method 
used  in  the  herein  described  test, 
conform  with  the  specifications  for  such 
test  required  by  By-Law  6401  of  the 
Building  Code  of  the  City  of  Toronto, 
Canada.” 

PURPOSE  OF  THE  TEST 

“The  purpose  of  the  test  is  to  deter¬ 
mine  the  effect  of  a  continuous  fire  below 
the  floor,  lasting  three  hours,  at  an  aver¬ 
age  temperature  of  1700°  Fahr.,  a  tem¬ 
perature  generally  conceded  to  be  that  of 
a  burning  building,  the  floor  carrying  at 
the  same  time  a  distributed  load  of  125 
lbs.  per  square  foot.  At  the  end  of  the 
three  hours  the  under  side  of  the  roof, 
while  still  red  hot,  is  subjected  to  1  yi" 
stream  of  cold  water  through  a  hose  at 
close  range,  under  a  60  lb.  pressure,  for 
five  minutes;  the  upper  side  of  the  floor 
is  then  flooded  with  water  at  a  low  pres¬ 
sure,  and  afterward  the  stream  is  applied 
at  full  pressure  to  the  under  side  for  five 
minutes  longer.  Deflections  of  beams 
and  floor  are  measured  continuously  dur¬ 
ing  test.  The  load  is  then  increased  to 
286  lbs.  per  square  foot,  allowed  to  cool 
thoroughly  and  deflections  noted.” 

RESULTS  OF  TEST 
Effect  of  Working  Load  : 

‘‘No  appreciable  deflection  was  noted 
under  initial  or  working  load,  i.e.,  125 
lbs.  per  square  foot.” 


Effect  of  Fire  and  Water: 

“The  combined  effect  of  fire  and  water 
was  to  remove  the  plaster  almost  entirely 
from  the  under  side  of  the  test  slab,  leav¬ 
ing  only  that  portion  which  could  not  be 
readily  reached  by  the  stream,  owing  to 
its  proximity  to  the  front  wall.  Through¬ 
out  the  area  where  the  plaster  did  not 
adhere,  the  Metropolitan  mixture  was  re¬ 
moved  to  a  depth  of  from  A 2"  to  1  jT”, 
exposing  approximately  the  central  two 
feet  of  the  length  of  each  cable.” 

“No  cracks  appeared  on  the  upper  side 
of  the  system  nor  did  any  flame,  smoke 
or  water  pass  through  at  any  time. 

“The  conducted  heat,  as  measured  by 
the  bare  bulb  of  a  mercury  thermometer 
placed  in  contact  with  the  cinder  concrete 
fill  at  intervals  during  the  fire,  was  found 
to  be  no  greater  than  the  recorded  out¬ 
side  air  temperature. 

“During  the  fire  the  total  corrected  de¬ 
flection  of  the  center  slab  was  %{2" .” 

Effect  of  Cooling: 

“The  arch  recovered  142"  on  cooling.” 

Effect  of  Load: 

“A  total  load  of  286  lbs.  per  square 
foot  produced  a  deflection  of  17A>A  On 
release  of  load  the  arch  recovered  until 
the  deflection  reading  was  1  l{2 ■ "  No  other 
effects  were  noted  during  this  loading.” 

(Complete  report  sent  upon  request) 


[37] 


METROPOLITAN  ^ 
SYSTEM 


TABLE  OE  TOTAL  LOADS 

METROPOLITAN  SYSTEM  OF  FIREPROOF  FLOOR  AND  ROOF  CONSTRUCTION 

Cables  composed  of  2-No.  12  Cold  Drawn  Galvanized  Steel  Wires  Twisted 

Cable- 2 x. 00874  @20000*°"=  3  50* 

20000*°”  w~  b'TITL  NO.  12. 

ROOFS 

SLAB 

THICKNESS 

CABLE 

5PACING 

CLEAR  DISTANCE  BETWEE 

M  FLANGES  OF  BEAMS 

3-  e" 

4‘-0" 

4'-6" 

5-0" 

5-6" 

6‘-o" 

6-6“| 

7-0" 

7-6" 

6-0" 

8-6" 

9-0* 

9-6* 

10-0" 

3 

1 

4-50 

345 

2  73 

22  1 

183 

154 

131  1 

1  14 

1/4 

360 

2  76 

218 

1  77 

147 

P4 

105 

91 

I'/Z 

30  1 

230 

182 

147 

123 

103 

88 

76 

PA 

258 

1  97 

156 

126 

104 

88 

75 

65 

2 

225 

1  72 

137 

IIP 

22. 

Z2 

65 

57 

2/4 

200 

153 

122 

99 

82 

68 

58 

51 

2/2 

1  80 

138 

109 

88 

74 

61 

53 

46 

?%- 

164 

1  25 

100 

SL 

67 

57 

48 

41 

3 

1  50 

1  1  •> 

91 

74 

61 

44 1 

3ft 

•r  { 

1 

556 

430 

340 

275 

227 

193 

165 

141 

124 

1  09  | 

96 

1/4 

445 

343 

2  72 

220 

182 

1  54 

1  32 

1  13 

99 

87 

77 

1  '/2 

370 

285 

226 

184 

152 

1  28 

1  1  0 

95 

82 

7  3  1 

64 

P/4 

31  7 

245 

192 

155 

130 

1  10 

94 

82 

7  1 

62 

55 

3| 

2 

278 

2  1  5 

169 

138 

1  14 

96 

82 

71 

61 

55 

48 

2/4 

247 

1  8  1 

1.50 

123 

1  02 

65 

73 

63 

54 

49 

42 

2/2 

2  22 

1  7  1 

136 

1  1  0 

2i 

77 

66 

57 

50 

44 

38 

23A 

202 

1  55 

124 

101 

83 

70 

59 

52 

45 

39 

35 

3 

185 

1  43 

1  13 

92 

76 

64 

55 

47 

41 

36  1 

32 

METROPOLITAN  COMPOSITION  WEIGHS  5  LBS. 
PER  SQUARE  FOOT  BY  ONE  INCH  IN  THICKNESS 

ROOFS 

SLAB 

TMICKNES5 

CABLE 

SPACING 

3-6" 

4-0” 

4-6“ 

5-0" 

5-6" 

6-0" 

6-6* 

7^0” 

7-6" 

8-0" 

8-6" 

9-0" 

9-6” 

10-0" 

FLOORS 

A 

1 

6  58 

508 

40  3 

330 

270 

230 

195 

169 

148 

129 

115 

102 

93 

83 

1/4 

527 

406 

322 

264 

2  1  6 

184 

156 

1  35 

1  18 

103 

91 

82 

75 

67 

IV? 

438 

338 

268 

2  20 

180 

153 

130 

1  12 

98 

86  1 

77 

69 

62 

56 

P/4 

376 

29  0 

230 

188 

154 

131 

1  1  1 

97 

84 

74 

66 

59 

53 

48 

2  , 

328 

2  54 

201 

165 

135 

1  1  5 

98 

84 

74 

64  1 

57 

5  2 

46 

41 

l1 

2/4 

292 

226 

178 

147 

1  20 

102 

87 

75 

65 

57  1 

51 

46 

41 

37 

2/2 

264 

2  03 

165 

13  1 

108 

91 

78 

67 

58 

52 

46 

41 

37 

34 

23/4 

240 

185 

147 

1  20 

98 

83 

71 

61 

54 

47 

42 

37 

34 

31 

ft> 

2  1  9 

169 

134 

1  1  0 

90 

77 

65 

57 

49 

4ft 

38 

35 

31 

28 

1 

757 

58  3 

466 

38  2 

3  13 

264 

226 

195 

172 

150 

134 

120 

107 

97 

1/4 

605 

46  7 

37  3 

305 

251 

?  1  2 

181 

155 

137 

121  1 

107 

96 

86 

-  -  7  ft 

1/2 

505 

389 

3  1  0 

255 

209 

1  77 

150 

1  30 

1  14 

101 

89 

79 

72 

64 

m 

432 

334 

266 

218 

179 

151 

129 

1  1  1 

98 

86 

77 

69 

61 

56 

2 

378 

292 

233 

190 

157 

132 

1  1  3 

97 

85 

76  1 

67 

60 

54 

48 

2/4 

.336 

260 

207 

169 

140 

1  1  8 

10  1 

86 

76 

67/ 

59 

54 

48 

43 

?'/2 

303 

2  34 

18  6 

152 

1  26 

1  06 

90 

78 

68 

60  1 

54 

48 

43 

38 

234 

275 

2  13 

170 

139 

1  1  4 

96 

82 

7  1 

62 

56 

49 

43 

39 

35 

3 

252 

1  94 

15  5 

127 

1  04 

88 

7-? 

65 

57 

50 

45 

40 

35 

32 

3 

L 

853 

660 

528 

43  3 

358 

302 

259 

7  24 

196 

173 

153 

136 

122 

1  1  1 

1/4 

682 

528 

423 

347 

286 

242 

207 

1  79 

156 

138  1 

123 

109 

98 

89 

1/2 

569 

441 

35  2 

288 

239 

20  1 

172 

1  50 

130 

1  15 

102 

91 

81 

74 

PA 

487 

378 

302 

247 

205 

1  72 

147 

128 

1  1  1 

98 

87 

78 

70 

63 

2 

427 

3  30 

264 

2  1  6 

179 

151 

129 

1  1  2 

98 

86 

77 

68 

61 

56 

2/4 

380 

2  94 

235 

193 

1  5.9 

1  34 

1  I  5 

100 

86 

77 

68 

60 

55 

50 

2  ^ 

341 

265 

2  1  2 

1  73 

144 

120 

104 

90 

78 

69 

6  1 

55 

49 

44 

23/4 

3  1  0 

241 

1  92 

157 

130 

109 

94 

82 

71 

62 

j  56 

50 

45 

40 

3 

284 

2  20 

1  76 

144 

1  20 

101 

86 

7  5 

65 

58 

51 

45 

41 

37 

/IMs 

1 

944 

738 

592 

483 

402 

340 

290 

252 

220 

193 

171 

153 

138 

125 

e 

1 

1032 

807 

64  8 

531 

442 

3  74 

321 

2  78 

243 

2  14 

190 

170 

153 

P8 ... 

[38] 


SPECIFICATIONS  FOR 

METROPOLITAN  SYSTEM 

OF  FLOORS  AND  ROOFS 


CABLES,  each  composed  of  two  No.  12  (or 
equivalent)  galvanized  wires  twisted,  shall 
be  carried  over  the  tops  of  the  beams  or  purlins 
to  outside  wall  beams  or  end  purlins  and  be 
secured  to  them  by  strong  anchors.  These 
cables  shall  be  laid  parallel  1"  to  3"  apart, 
according  to  spans  and  loads,  and  shall  pass 
under  round  iron  bars,  midway  between  the 
purlins,  so  as  to  cause  the  cables  to  deflect  uni¬ 
formly.  Forms  or  centers  shall  be  put  in  place 


about  1 "  below  the  round  iron  bars  shown 
above.  I  be  Metropolitan  Composition  shall 
then  be  poured  in  place,  and  brought  to  an  even 
surface  about  "  above  the  top  of  the  beams, 
forming  a  slab  ready  to  receive  sleeper  fill  or 
grading,  and  with  the  underside  left  as  smooth 
as  practicable.  Fireproofing  beams  and  girders 
(not  trusses)  with  2"  on  bottom  flange  and  1  y2" 
on  sides.  The  slab  shall  be  designed  to  carry 
safely  the  live  load  with  a  factor  of  safety  of  four. 


i  : . 

■■**■■■  ......  .....  -  - U/T-.  - - 

-- 

t 

K 

t 

A  (  c  -ri  1  Zz  under  sleet 

/  %  ^sTeel  def/ection  rod 

, Metropolitan  Composition 

- - ^ - - 

1 

FORM  “C” 


CABLES,  each  composed  of  two  No.  12  (or 
equivalent)  galvanized  wires  twisted,  shall 
be  carried  over  the  tops  of  the  beams  or 
purlins  to  outside  wall  beams  or  purlins,  and 
be  secured  to  them  by  strong  anchors.  These 
cables  shall  be  laid  parallel  1  "  to  3"  apart,  ac¬ 
cording  to  spans  and  loads,  and  shall  pass  under 
round  iron  bars,  midway  between  the  purlins, 
so  as  to  cause  the  cables  to  deflect  uniformly. 
Forms  or  centers  shall  be  put  in  place  (by  our¬ 


selves)  about  1 "  below  the  round  iron  bars 
shown  above.  The  Metropolitan  Composition 
shall  then  be  poured  in  place,  and  brought  to 
an  even  surface  about  x/i”  above  the  tops  of  the 
beams,  forming  a  slab  ready  to  receive  finished 
roofing  or  grading,  and  with  the  underside  left 
as  smooth  as  practicable.  The  slab  shall  be 
designed  to  carry  safely  the  live  load  with  a 
factor  of  safety  of  four. 


[39] 


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INFORMATION  FOR  DESIGNING 


OUR  ENGINEERING  DEPARTMENT 

HE  services  of  our  Engineering  Department 
are  at  all  times  at  the  command  of  our 
customers  or  prospective  customers  who  may  be 
designing  or  contemplating  our  construction. 

We  earnestly  recommend  that  our  Engineering 
Department  be  consulted  before  the  steel  design 
lor  your  next  building  is  completed.  We  will 
gladly  send  one  of  our  engineers  to  confer  with 
you — and  it  will  place  you  under  neither  expense 
nor  obligation. 

The  designs  shown  on  this  and  subsequent 
pages  are  of  more  or  less  standard  types — they  do 
not  reflect  any  limitation  of  the  adaptability  of 
the  Metropolitan  System. 

ALLOWABLE  SPANS 

ETROPOLITAN  Roof  Construction  can 
be  installed  between  supports  spaced  up  to 
io  feet  in  the  clear.  Under  usual  conditions, 
considering  the  steel  work  and  the  floor  and 
roof  construction  together,  our  experience  has 
shown  the  most  economical  spacing  to  be  from 
6'  to  7'. 

For  saw-tooth  roofs,  an  extremely  simple, 
economical  and  efficient  design  is  shown  on  page 
43,  the  cables  being  supported  by  trusses,  no 
purlins  being  required. 

WATERPROOFING 

ALL  the  approved  methods  of  waterproofing 
_  have  been  successfully  applied  to  the 
Metropolitan  slab.  This  includes  what  is  com¬ 
monly  known  as  slag,  gravel,  built-up-asbestos- 
waterproofing,  tin,  slate,  shingles  or  tile.  The 
waterproofing  should  be  specified  to  cover  the 
curbs,  the  vertical  ends  of  the  saw-teeth  or 


monitors,  unless  these  portions  are  entirely 
covered  by  flashing. 

The  Metropolitan  slab  appeals  to  the  roofing 
contractor  because  of  its  true  and  even  surface  on 
top,  and  on  account  of  the  fact  that  it  will  hold 
nails.  The  fact  that  it  will  hold  nails  should 
be  taken  into  consideration  by  contractors  bid¬ 
ding  on  waterproofing.  Those  experienced  with 
waterproofing  Metropolitan  slabs  usually  quote 
a  lower  price  than  where  their  work  is  to  be 
applied  to  other  types  of  fireproof  construction. 

GRADING 

HERE  there  are  long  stretches  of  roof  to 
be  drained,  this  can  usually  be  done  most 
economically  by  designing  the  steel  to  take  care 
of  the  fall.  Very  frequently  such  a  steel  design 
involves  considerable  tedious  detailing  in  fabri¬ 
cation  as  well  as  erection.  In  such  cases  it  is 
better  to  specify  the  grading  to  be  done  with 
Metropolitan  composition  as  the  slab  is  poured, 
or  afterward. 

UNDERNEATH  FINISH 

NLIKE  concrete,  where  the  aggregate,  con¬ 
sisting  of  stone,  slag  or  cinders,  leaves  more 
or  less  voids  on  the  underside,  Metropolitan 
slab  presents  a  hard,  even  and  practically  smooth 
surface,  which  can  be  painted  readily  when  the 
slab  has  become  dry. 

This  should  not,  however,  be  misunderstood  to 
carry  the  impression  that  the  underneath  finish 
will  approximate  in  appearance  a  plastered  ceil¬ 
ing.  Although  tongue-and-grooved,  dressed 
1  u  m  ber  is  used  for  the  form  work,  and  the  same 
carefully  fitted,  the  outline  of  the  boards  will 
show  on  the  underside  of  the  slab. 


[41J 


-Continuous  Angfe 


Alternate  Block  Curb 


Cab  :es  to  anchor  to  end  pur.'/n  , 

Rod  reinforcement  to  be  hooted  ' 
oner  bo*h  the  arg'e  and  the  beam 


Con  / 


Antjh 


Standard  Sawtooth  Tbuss  with  Puquns 

shomng  details  of 

Metropolitan  System  of  Fireproof  Roof  Construction 

Keystone  Gypsum  Ere  proofing  Corporation 


/6  utrapAnchorj 

/ Z‘oc 

r  /'•£■/, 5'oc  1  _ 


.  Continuous  Angle 


filter™* 


Cables  to  she  bar 
to  this  pur/m  Curb 
to  be  reinforced 
mth  Rods  or  Meta! 
Lath 


Cables  to  anchor  to  pur  tin  and 
orerhang  to  be  reinforced  "  } 


Flashing^, 
Nailing  Strip!  — 
Continuous  frg!ep\ 


Standard  Monitor  Truss 

sh?w-g  de*a>  's  o~ 


■Metropolitan  System  of  Fireproof  [Roof  Construction 

Keystone  Gypsum  Fireproofing  Corvorsf/or 


t+Rod 


Meifopcutan 

Composition  y 


Cables  hed  to  /  Pod 


Cates  to  a~c  ns.'  on  end  aur'sr 


V,  Ore-hang  *o  be  remTorcee  m 


JPods  -  ■  /  ry  GC’^ 

s  HOCUS 


filing 

Continuous  Tee 
or  Angles 


Continuous  Angle 


Tie  fo  be  used  with  inclined  /see  s&rv/po/h 


Stamdabd  Sawtooth  with  Vertical  ob  Inclined  Face 

showing  details  of 

Metropolitan  System  of  Fuse  proof  Roof  _  Cqnstr/jc  tion 

Keystone  Gypsum  Fireproofing-  Corporation 


WMM/MM 


failing  Strip 


fail  my  Strip 


'.Continuous 

uAnyle- 


Continuous  Tee 


or  Angles 


;  as  ■ 


r/NJSH  of  Slab  at 
jEmp  of  Sawteeth 


Continuous  Ang'e 


Standaqd  Vertical  Face  Sawtooth 

showng^d^3j^0^ 


Metropolitan  System  of  Fireproof  Roof  Construction 

Keystone  Gypsum  Fireproofing  Corporation 


[43  ] 


METROPOLITAN 
SYSTEM 

FLOORS  and  HOOFS 


Nch  Wd/erprooftny  Mcmbrdnc. 

Thoroughly  Dry  Insulating  (/ypium  Block- 
Thoroughly  Dry  Tnou/chn g  Fibre. 

Existing  Wdcrproofing  Mcmbrdnc. 

Concrete,  Tile,  or  Olher  Mdlerul  forming  Existing  Boo/  Deck 


THE  FRANK  SYSTEM  Of  ROOF  INSULATION 


OVER.  ErXISTlNQ  ROOF  CONSTRUCTION 


£  £  UMBRELLA  BHED 


I  44) 


1 

I 


* 


TYPICAL  3CCTIOH  TH/SO  CttC/Nf  Lf  TYPICAL  SPUCC  CONN. 


dcta/l  or  r/ee peoor/NQ  reujj 


STANDARD  PE.ATT  TR.U33. 

3MOWIN ^  M TAILS 

METROPOLITAN  SYSTEM  OF  FIREPROOF  ROOF  AND  CEILING 
CONSTRUCTION 


5FCT/ON  THRO  FLOOR  OR  ROOF. 


~Rr~£, 

j  *  £ 

v  o'-T 

.ijlur 

ill 

METROPOLITAN  5Y5T£M  ON 

WOOD  OR  CONCRETE  BEAM5. 


A  WOLF  /ROW 3 
OR  R/PF  3TBUTJ 


'STANDA^D'MON  ITO^'P/PE' 

Showing-  Panel  Bracing. 

-fd-fcXR Q-ELQi- 1 TA N  gJOQF  51A&-,. 

NOT  Cl  Where  there  are /oar  or  /ejj  pane/s  do  not  aye  /he  type  of 
hraerny  shown  on  paye  hat  use  eny/e  iron  or  pipe  y/ra/y 
If  any/e  irons  are  /o  he  used  /hey  should  he  we  faded  in  /he 
structure.'  y/eef  contract  If  pipe  y/ra/y  sre  io  he  use  /he a  yhoa/d 
on  fan  ro, 


he  me  fa  dedin  /he  Ple/ropo. 


■00/  s/ah  eonfraet 


INSTALLATIONS 


Some  of  the  Buildings  in  the  United  States  which  have  employed 

THE  METROPOLITAN  SYSTEM 


GOVERNMENT  WORK  AND 
SHIPBUILDING  PLANTS 


Naval  Ordnance  Plant, 

South  Charleston,  W.  Va . 

Dirigible  Hangar, 

Langley  Field,  Va . 

Ten  Magazine  Buildings,  Naval  Mine 

Depot,  Yorktown,  Va . 

Boiler  Plant  . 

Men’s  Toilet  and  Locker  Building, 

Electric  Station 

Finishing  Machine  Shop 

Rough  Machine  Shop 

Electrical  Shop,  Bethlehem  Shipbuilding 

Corp.,  Sparrows  Point,  Md . 

Boiler  Makers’  Shop,  Washington  Navy 

Yard,  Washington,  D.  C . 

Foundry,  Pusey-Jones  Shipbuilding  Co., 

Wilmington,  Del . 

Foundry,  U.  S.  Navy  Yard,  League 

Island,  Philadelphia,  Pa . 

Projectile  Plant,  U.  S.  Government, 

Charleston,  W.  Va . 

Stable  and  Garage,  U.  S.  Navy  Yard, 

League  Island,  Philadelphia,  Pa . 

Mold  Loft,  Pusey-Jones  Ship  Building 
Co.,  Wilmington,  Del. 

Compressor  Building,  U.  S.  Cold  Storage 

Plant,  Hampton  Roads,  Va . 

Machine  Shop,  Pusey-Jones  Ship  Build¬ 
ing  Co.,  Wilmington,  Del . 

Mold  Loft  Extension,  Pusey-Jones  Ship- 

ing  Co.,  Wilmington,  Del . 

Machine  and  Tool  Shop,  Pusey-Jones 
Ship  Building  Co.,  Wilmington,  Del.. 
U.  S.  Structural  Shop,  U.  S.  Govern¬ 
ment,  Norfolk,  Va. 

Mold  Loft  and  Punch  Shop,  Pusey-Jones 
Ship  Building  Co.,  Wilmington,  Del. 
No.  2  Mold  Loft  and  Punch  Shop, 

Pusey-Jones  Ship  Building  Co . 

Power  Plant,  U.  S.  Naval  Training 

Station,  Newport,  R.  I . 

Building  No.  1,  2  and  .1,  Pennsylvania 
Ship  Building  Co.,  Gloucester,  N.  J... 
Machine  and  Boiler  Shop,  New  Jersey 
Ship  Building  Co.,  Gloucester,  N.  J... 
Building  No.  1,  2  and  3,  New  Jersey 
Ship  Building  Co.,  Gloucester,  N.  J.. 
Office  Building,  New  Jersey  Ship  Build¬ 
ing  Co.,  Gloucester,  N.  J . 

Joiner  Shop,  New  Jersey  Ship  Building 

Co.,  Gloucester,  N.  J . 

Compressor  Rooms,  New  Jersey  Ship 

Building  Co.,  Gloucester,  N.  J . 

No.  2  Extension  Machine  and  Boiler 
Shops,  New  Jersey  Ship  Bldg.  Co., 

Gloucester,  N.  J . 

Garage  and  Sub-Station,  New  Jersey 
Ship  Building  Co.,  Gloucester,  N.  J... 
Gas  Booster,  New  Jersey  Ship  Building 

Co.,  Gloucester,  N.  J . 

Emergency  Hospital,  New  Jersey  Ship 

Building  Co.,  Gloucester,  N.  J . 

Group  of  Hangar  Buildings  for  the  U.  S. 

Government,  New  Dorp,  S.  I . 

Extension  “A”  to  Power  Plant,  Brooklyn 

Navy  Yard,  New  York  City . 

Central  Power  Plant, 

Hampton  Roads,  Va . 


Navy  Department,  Bureau 
of  Yards  and  Docks 
Army  Department, 
Construction  Division 
Bureau  of  Yards  and  Docks 

U.  S.  Gun  Plant, 

Midvale  Steel  &  Ord.  Co. 
Nicetown,  Pa. 

Barclay  White  &  Co. 
Philadelphia,  Pa. 

Aberthaw  Construction  Co., 
Sparrows  Point,  Md. 

Bureau  of  Yards  and  Docks 
Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Bureau  of  Yards  and  Docks, 
Warren, Moore  &  Co.,  Cntrs. 
Bureau  of  Yards  and  Docks, 
Warren, Moore  &  Co.,  Cntrs. 
Bureau  of  Yards  and  Docks, 
Warren, Moore  &  Co.,  Cntrs. 
Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Bureau  of  Yards  and  Docks, 
Cramp  &  Co.,  Contractors 
Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Bureau  of  Yards  and  Docks, 
Geo.  E.  Wyne,  Contractor 
Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Bureau  of  Yards  and  Docks 
Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co. 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co., 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co., 
Philadelphia.  Pa. 

Geo.  F.  Pawling  Co., 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co., 
Philadelphia,  Pa. 

Geo.  F.  Pawling  Co., 
Philadelphia,  Pa. 
Construction  Division, 

U.  S.  Army,  Wash.,  D.  C. 
Bureau  of  Yards  and  Docks, 
Washington,  D.  C. 

Bureau  of  Yards  and  Docks, 
Washington,  D.  C. 


Proof  Shop,  Washington  Navy  Yard, 

Washington,  D.  C . 

Machine  Shop,  Globe  Shipbuilding  and 

Dry  Dock  Co.,  Fairfield,  Md . 

Power  House  for  Gallinger  Hospital, 
Washington,  D.  C . 


Bureau  of  Yards  and  Docks, 
Washington,  D.  C. 

H.  B.  Myers, 

Washington,  D.  C. 
Municipal  Architect, 
Washington,  D.  C. 


MANUFACTURING  AND  POWER  PLANTS 


Locomotive  and  Transformer  House, 

American  Brass  Co . 

Shed  Extension,  Jones  &  Lamson 

Machine  Co.,  Springfield,  Vt . 

Sub-Station,  Crown  Cork  and  Seal  Co., 

Baltimore,  Md . 

Treating  House,  Washington  Steel  & 

Ordnance  Co.,  Uniontown,  D.  C . 

Building  S,  Morgan  &  Wright, 

Detroit,  Mich . 

Shops,  Kuhlman  Car  Shops, 

Cleveland,  Ohio  . 

Boiler  House,  Kuhlman  Car  Shops, 

Cleveland,  Ohio  . 

Plant,  Highwood  Co., 

Hamden,  Conn . 

Shops,  West  Jersey  &  Seashore  R.  R. 

Co.,  Atlantic  City,  N.  J . 

Plant,  American  Locomotive  Co., 

Chicopee,  Mass . 

Foundry,  Farrel  Foundry  &  Machine 

Co.,  Ansonia,  Conn . 

Boiler  House,  Naumkeag  Cotton  Co., 

Salem,  Mass . 

Power  House,  Salmon  River  Power  Co., 

Altmar,  N.  Y . 

Fred  Hart  Machine  Works, 

Poughkeepsie,  N.  Y . 

Building,  Pierce  Arrow  Motor  Car  Co., 

Buffalo,  N.  Y . 

Milk  Depot,  Tait  Bros., 

Springfield,  Mass . 

Building  No.  33,  General  Electric  Co., 

Pittsfield,  Mass . 

Building  No.  19,  General  Electric  Co., 

Pittsfield,  Mass . 

Boiler  House,  Beacon  Light  Co., 

Chester,  Pa . 

Turbine  Room,  Beacon  Light  Co., 

Chester,  Pa . 

Boiler  House,  Philadelphia  Electric  Co., 

Tacony,  Pa . 

Shops,  L.  &  N.  E.  Ry  Co., 

Pen  Argyl,  Pa . 

Ash  Handling  Building,  General  Electric 

Co.,  Philadelphia,  Pa . 

Plant,  J.  H.  Williams  Co., 

Buffalo,  N.  Y . 

Hardening  Mill,  J.  H.  Williams  Co., 

Buffalo,  N.  Y . 

Extension  to  Hammer  Shop,  J.  H. 

Williams  Co.,  Buffalo,  N.  Y . 

Extension  to  Hardening  Building,  J.  H. 

Williams  Co.,  Buffalo,  N.  Y . 

Buildings,  J.  H.  Williams  Co., 

Buffalo,  N.  Y . 

Stock  Finishing  and  Pickling  Bldgs., 

J.  H.  Williams  Co.,  Buffalo,  N.  Y.. 
Extension  to  J.  H.  Williams  Co.’s 
Plant,  Buffalo,  N.  Y . 


Sperry  Engineering  Co., 
New  Haven,  Conn. 

Plant  Engineer,  Mr.  Perry 
Otto  G.  Simonson, 
Baltimore,  Md. 

Plant  Engineer 
Lockwood,  Greene  &  Co., 
Chicago,  Ill. 

Westinghouse,  Church,  Kerr 
Co.,  New  York  City 
Westinghouse,  Church,  Kerr 
Co.,  New  York  City 
Lockwood,  Gretme  &  Co., 
Boston,  Mass. 

Stern  &  Silverman, 
Philadelphia,  Pa. 

Plant  Engineer 
Aberthaw  Const.  Co., 
Boston,  Mass. 

New  England  Concrete 
Const  Co.,  Boston,  Mass. 
Erie  Const  Co., 

Buffalo,  N.  Y. 

John  W.  Ferguson  Co., 
Paterson,  N.  J. 

Aberthaw  Const.  Co., 
Boston,  Mass. 

Tait  Bros., 

Springfield,  Mass. 

M.  M.  Thrane, 

Chief  Engineer 
M.  M.  Thrane, 

Chief  Engineer 
Philadelphia  Electric  Co., 
Philadelphia,  Pa. 
Philadelphia  Electric  Co., 
Philadelphia,  Pa. 
Philadelphia  Electric  Co., 
Philadelphia,  Pa. 

F.  W.  Gilcrest,  Ch.  Engr., 
So.  ,  Bethlehem,  Pa. 

Plant  Engineer 
J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

J.  W.  Feiguson  Co., 
Paterson,  N.  J. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 


[46] 


Factory  Building,  A.  O.  Norton,  Inc., 
Roxbury,  Mass . 

Machine  Shops,  Milton  Mfg.  Co., 

Milton,  Pa . 

Boiler  House,  Worth  Bros., 

Coatesville,  Pa . 

Machine  and  Blacksmith  Shops,  Worth 

Bros.,  Coatesville,  Pa . 

Locker  Room,  Electric  Storage  Battery 

Co.,  Philadelphia,  Pa . 

Plant,  Victor  Box  Manufacturing  Co., 

Quakertown,  Pa . 

Erecting  Shop,  Simplex  Auto  Co . 

New  Brunswick,  N.  J . 

New  Machine  Shop,  Simplex  Auto  Co., 

New  Brunswick,  N.  J . 

Laboratory,  Simplex  Auto  Co., 

New  Brunswick,  N.  J . 

Pattern  Storage,  Empire  Foundry  Co., 

New  Brunswick,  N.  J . 

Pent  House  Add.,  N.  Y.  Transportation 
Co.,  New  York  City . 

Power  House,  No.  2 — Raritan  Copper 

Works,  Perth  Amboy,  N.  J . 

Alteration,  Raritan’s  Copper  Co.’s  Plant, 

Perth  Amboy,  N.  J . 

Two  Tank  Houses, 

New  York  City . 

Electric  Plant  Add.,  Hydraulic  Race  Co., 

Lockport,  N.  Y . 

Buildings,  Jones  &  Lamson  Machine  Co., 

Springfield,  Mass . 

Plant,  Bristol  Brass  Co., 

Bristol,  Conn . 

Power  Plant,  Lorain  County  Electric 
Co.,  Lorain,  Ohio . 

Warehouse  and  Machine  Shops,  Pitts¬ 
burgh  Coal  Co.,  Library,  Pa . 

Warehouse,  Gulf  Refining  Co., 

Shadyside,  Pa . 

Power  Plant, 

Milton,  Pa . 

Machine  Shop,  Pennsylvania  R.  R.  Co., 

Pitcairn,  Pa . 

Boiler  Shop,  Washington  Gas  Light  Co., 

Washington,  D.  C . 

Mill  No.  S,  Crocker- Burbank  Co., 

Fitchburg,  Mass . 

Carpenter  Shop,  Heppenstall  Forge  & 

Knife  Co.,  Pittsburgh,  Pa . 

Machine  Shop,  Westinghouse  Electric  & 

Machine  Co.,  Pittsburgh,  Pa . 

Freihofer  Bakery, 

Philadelphia,  Pa . 

Power  Plant  and  Manufacturing  Bldg., 

Philadelphia,  Pa . 

Building  for  Dill  &  Collins  Co., 

Philadelphia,  Pa . 

Machine  Shop,  Landis  Machine  Co., 

Waynesboro,  Pa . 

Building  No.  1  and  2,  Enterprise 
Manufacturing  Co.,  Philadelphia,  Pa.. 
Roof  of  Electric  Plant,  Philadelphia  & 
Suburban  Gas  &  Electric  Co., 

Cromby,  Pa . 

Manufacturing  Buildings,  Griswold 

Worsted  Mills,  Darby,  Pa . 

Building  for  Carver  File  Co., 

Bridesburg,  Pa . 

Power  Machine  Bldg.,  DeLaval  Separa¬ 
tor  Co.,  Poughkeepsie,  N.  Y . 

Building  for  American  La  France  Fire 

Engine  Co.,  Bloomfield,  N.  J . 

Pipe  Fitting  Warehouse, 

Philadelphia,  Pa . 

Manufacturing  Building,  Diamond  Match 

Co.,  Barberton,  Ohio . 

Paper  Mill,  Fitzdale  Paper  Co., 

Fitzdale,  Vt . 

New  Buildings,  American  Chain  Co., 

York,  Pa . 

Boiler  Room,  Locke  Insulator  Co., 
Baltimore,  Md . 


Jas.  T.  Ball, 

Boston,  Mass. 

Phoenix  Bridge  Co., 
Phoenixville,  Pa. 

Irwin  &  Leighton, 
Philadelphia,  Pa. 

Irwin  &  Leighton, 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Kerr  Dodge, 

Philadelphia,  Pa. 
Westinghouse,  Church,  Kerr 
Co.,  New  York  City 
Westinghouse,  Church,  Kerr 
Co.,  New  York  City 
Westinghouse,  Church,  Kerr 
Co.,  New  York  City 
WCstinghouse,  Church,  Kerr 
Co.,  New  York  City 
Jas.  C.  McGuire  &  Co., 
New  York  City 


Plant  Engineer,  Mr.  Fulton 

Plant  Engineer,  Mr.  Fulton 
Harry  B.  Mulliken, 

New  York  City 
L.  H.  Kunhardt, 

Boston,  Mass. 

New  England  Structural 
Steel  Co.,  Boston,  Mass. 
Levering  &  Garrigues, 

New  York  City 
Utilities  Construction  Co., 
Toledo,  Ohio 

Hughes-Foulkrod  Co., 
Pittsburgh,  Pa. 
Hughes-Foulkrod  Co., 
Pittsburgh,  Pa. 

Willard  Case  Co., 

New  York  City 
Irwin  &  Leighton, 
Philadelphia,  Pa. 
Washington  Gas  Light  Co., 
Washington,  D.  C. 

Geo.  F.  Hardy  Co., 

New  York  City 

Plant  Engineer 

Plant  Engineer 
H.  Childs  Hidgens, 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Plant  Engineer 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 


Plant  Engineer 
Turner  Construction  Co., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

J.  W.  Ferguson  Co., 
Paterson,  N.  J. 

Starrett  &  Van  Vleck, 
New  York  City 
Wm.  E.  Hale, 
Philadelphia,  Pa. 

Turner  Construction  Co., 
Buffalo,  N.  Y. 

Geo.  F.  Hardy  Co., 

New  York  City 

Plant  Engineer 
Parker,  Thomas  &  Rice, 
Baltimore,  Md. 


New  Buildings,  Fitchburg  Paper  Co., 

West  Fitchburg,  Mass . 

Power  Plant,  Carver  File  Co., 

Bridesburg,  Pa . 

South  Meadow  Station,  Hartford  Elec¬ 
tric  Light  Co.,  Hartford,  Conn . 

Commercial  Truck  Building, 

Philadelphia,  Pa . 

Silk  Mill,  American  Cellulose  N 

Chemical  Co.,  Cumberland,  Md . 

Switchboard  Room,  Charlottesville  & 
Albemarle  R.  R.,  CharlottesvilL,  Va.  . 
Manufacturing  Building,  The  Porcupine 

Co.,  Fairfield,  Conn . 

Power  House,  Henry  Ford  Co., 

Green  Island,  N.  Y . 

Power  Plant,  Marywood  College, 

Scranton,  Pa . 

Gas  Producer  Building,  Ward  Baking 

Co.,  Ampere,  N.  J . 

New  Bleachery  for  J.  &  P.  Coats,  Inc., 

Pawtucket,  R.  I . 

New  Foundry  Building,  H.  S.  B.  W. 

Cochrane  Corp. ,  Earnest,  Pa . 

Kiln  Building,  Clay  Products  Corp.  of 

America,  New  Hope,  Pa . 

Extension  to  Beater  Room,  Chester 

Paper  Co.,  Chester,  Pa . 

Roof,  International  Harvester  Co., 

Philadelphia,  Pa . 

Buildings,  Kiechkefer  Container  Co., 

Delair,  N.  J . 

Buildings,  A.  W.  Jack  Corp., 

Lockport,  N.  Y . 

Queen  Lane  Pumping  Station, 

Philadelphia,  Pa . 

Factory  Building,  Krook  Co., 

Manayunk,  Pa . 

Machine  Room  Roof,  Schmidt  &  Ault 

Co.,  York,  Pa . 

Structural  Shop,  Bauman  Iron  Works, 

Reading,  Pa . 

Building  for  Ault  &  Wiborg, 

Jersey  City,  N.  J . 

Power  House,  Berwind  White  Co., 

Windber,  Pa . 

Three  Bay  Extension  Mine  No.  34, 
Auxiliary  Power  Plant,  Windber,  Pa.  . 
Factory  for  Wm.  &  Plarvey  Rowland, 

Philadelphia,  Pa . ' . 

Addition  to  William  &  Harvey  Rowland 

Plant,  Philadelphia,  Pa . 

Building  No.  14,  David  Lupton  &  Sons, 

Philadelphia^  Pa . . 

Building  No.  17,  David  Lupton  &  Sons, 

Philadelphia,  Pa . 

Building  No.  15.  David  Lupton  &  Sons, 

Philadelphia,  Pa . 

Extension  to  Building  No.  17,  David 

Lupton  &  Sons,  Philadelphia,  Pa . 

Transformer  Buildings,  Lukens  Steel 

Co.,  Coatesville,  Pa. . 

Service  Building,  White  Motor  Co., 

Philadelphia,  Pa . 

Foundry,  Penn.  Seaboard  Steel  Corp., 

Chester,  Pa . 

Building  No.  2,  Belfield  Co., 

Philadelphia,  Pa . 

Harrisburg  Pipe  &  Pipe  Bending  Co., 

Harrisburg,  Pa . 

Furnace  House,  J,  T.  Lewis  Co., 

Philadelphia,  Pa . 

Additions,  J.  T.  Lewis  Co., 

Philadelphia,  Pa . 

Roof  of  Furnace  House  for  J.  T.  Lewis 

Co.,  Philadelphia,  Pa . 

Extension  to  Furnace  House,  for  J.  T. 

Lewis  Co.,  Philadelphia,  Pa . 

Storage  Shed,  James  Campbell  Co., 

Camden,  N.  J . 

Plant,  Whitney  Blake  Wire  Co., 

Hamden,  Conn . 

Machine  and  Blacksmith  Shops,  Lenoir 

Car  Works,  Lenoir  City,  Tenn . 

Buildings,  Ford  &  Kendig, 

Conshohocken,  Pa . 


Geo.  F.  Hardy  Co., 

New  York  City 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 

Stone  &  Webster, 

Boston,  Mass. 

Wm.  Steele  &  Sons, 
Philadelphia,  Pa. 

Plant  Engineer 

Company’s  Engineer 
Fletcher-Thompson  Co., 
Bridgeport,  Conn. 

Stone  &  Webster, 

Boston,  Mass. 

J.  J.  Howley, 

Scranton,  Pa. 

C.  B.  Comstock, 

New  York  City 

Plant  Engineer 
McClintic-Marshall  Co., 
Philadelphia,  Pa. 

Belmont  Iron  Works, 
Philadelphia,  Pa. 

Plant  Engineer 
W.  D.  Price, 

Philadelphia,  Pa. 

Irwin  &  Leighton, 
Philadelphia,  Pa. 

Geo.  F.  Hardy  Co., 

New  York  City 

City  of  Philadelphia,  Pa. 

J ohn  Cantler 

Plant  Engineer 
Muhlenberg  Bros., 

Reading,  Pa. 

L.  H.  Hornum 
Berwind  White  Coal  Min¬ 
ing  Co.,  Philadelphia,  Pa. 
Berwind  White  Coal  Min¬ 
ing  Co.,  Pniladelphia,  Pa. 
Irwin  &  Leighotn, 
Philadelphia,  Pa. 

Irwin  &  Leighotn, 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Plant  Engineer 
Watson  Eng.  Co., 

Cleveland,  Ohio 
Belmont  Iron  Wks., 
Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Austin  Co. 

Philadelphia,  Pa. 

Turner  Concrete  Steel  Co., 
Philadelphia,  Pa. 

Turner  Concrete  Steel  Co., 
Philadelphia,  Pa. 

Turner  Concrete  Steel  Co., 
Philadelphia,  Pa. 

Turner  Concrete  Steel  Co., 
Philadelphia,  Pa. 

Irwin  &  Leighton  Co., 
Philadelphia,  Pa. 

Sperry  Eng.  Co., 

New  Haven,  Conn. 

H.  W.  Hesselbach,  Arch., 
Southern  Rwy.  Co. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 


[47] 


Office  Addition,  Belmont  Iron  Works, 

Philadelphia,  Pa . 

Building,  Stovvell  Motor  Car  Co., 

Syracuse,  N.  Y . 

Addition  to  Electric  Storage  Battery 

Co.,  Philadelphia,  Pa . 

Building,  Rome  Brass  &  Copper  Works, 

Rome,  N.  Y . 

Warehouse,  Wm.  Ogden, 

Binghamton,  N.  Y . 

29  Dry  Kiln  Buildings,  Victor  Talking 

Machine  Co.,  Camden,  N.  J . 

Station,  General  Electric  Co., 

Philadelphia,  Pa . 

New  Forge  Shop.  American  Can  Cc., 
Edgewater,  N.  J . 

Repairs  to  Sheds,  Southern  Railway  Co., 

Spencer,  N.  C . 

Foundry,  Frazer  &  Jones  Co., 

Solvay,  N.  Y . 

Gurney  Ball  Bearing  Co., 

Jamestown,  N.  Y . 

Packing  Plant,  J.  J.  Felin  Co., 

Philadelphia,  Pa . 

Stock  Pen,  J.  J.  Felin  Co., 

Nicetown,  Pa . 

Scrapple  Room  Roof,  J.  J.  Felin  Co., 

Nicetown,  Pa . 

Lean-to  over  Pump  and  Tanks,  No.  2 
Projectile  Plant,  Bethlehem  Steel  Co., 

So.  Beth.,  Pa . 

Roof  of  Turbine  Room,  Bethlehem  Steel 

Co.,  Lebanon,  Pa . 

Warehouse  and  Finishing  Building, 
Bethlehem  Steel  Co.,  Lebanon,  Pa... 

Roof  Court  at  No.  2  Mill,  Bethlehem 

Steel  Co.,  So.  Bethlehem,  Pa . 

Five  Bay  Extension — 48  in.  Shape  Mill, 
Bethlehem  Steel  Co.,  So.  Beth.,  Pa... 
Sub-Station  No.  1,  Bethlehem  Steel  Co., 

Lebanon,  Pa . 

Keg  Storage  Building,  Bethlehem  Steel 
Co.,  Lebanon,  Pa . 

30  in.  Billet  Mill,  Bethlehem  Steel  Co., 

South  Bethlehem,  Pa . 

Compressor  Building,  Tin  Plate  Plant, 
Bethlehem  Steel  Co.,  Sparrows  Point, 

Md . 

Exhauster  House  Roof,  Bethlehem  Steel 

Co.,  South  Bethlehem,  Pa . 

44"  Bloom  Mill,  Bethlehem  Steel  Co., 

Steelton,  Pa . 

Gas  Blowing  Engine,  Bethlehem  Steel 

Co.,  Steelton,  Pa . 

Two  Bay  Extension,  Bethlehem  Steel 

Co.,  Sparrows  Point,  Md . 

Gas  Producer  Building,  Bethlehem  Steel 

Co.,  Sparrows  Point,  Md . 

Lean-to  Annealing  Building,  Bethlehem 

Steel  Co.,  South  Bethlehem,  Pa . 

Sulphate  Storage  Building,  Bethlehem 

Steel  Co.,  South  Bethlehem,  Pa . 

Pumping  Station,  Bethlehem  Steel  Co., 

Sparrows  Point,  Md . 

Baltimore  Sheet  &  Tin  Plate  Co., 

Sparrows  Point,  Md . 

Ext.  No.  2,  Machine  Shop,  Bethlehem 

Steel  Co.,  South  Rethlehem,  Pa . 

Tool  Room,  Bethlehem  Steel  Co., 

South  Bethlehem,  Pa . 

Tempering  Plant  No.  S,  Bethlehem  Steel 

Co.,  South  Bethlehem,  Pa . 

Ingot  Mould  Budding,  Bethlehem  Steel 

Co.,  South  BethLhem,  Pa . 

Armor  Piercing  Projectile  Shop,  Beth¬ 
lehem  Steel  Co.,  South  Bethlehem,  Pa. 

Additions,  Building  No.  4,  Bethlehem 

Steel  Co.,  South  Bethlehem,  Pa . 

Lean-to  Transformer  House,  Bethlehem 

Steel  Co.,  South  Bethlehem,  Pa . 

Office  Building,  Projectile  Plant,  Bethle¬ 
hem  Steel  Co.,  South  Bethlehem,  Pa.. 
Annealing  Building,  Bethlehem  Steel  Co., 
South  Bethlehem,  Pa . 


Belmont  Iron  Works, 
Philadelphia,  Pa. 

M.  E.  Granger, 

Syracuse,  N.  Y. 

Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Plant  Engineer 
T.  J.  Lacey  &  Sons, 
Binghamton,  N.  Y. 
Ballinger  &  Perrot, 
Philadelphia,  Pa. 

John  T.  Windrim, 
Philadelphia,  Pa. 

N.  M.  Lowney,  Eng., 

New  York  City 

H.  W.  Hesselbach,  Arch., 
So.  R.  R.  Co.,  Wash.,  D.C. 
Sackett  &  Park, 

Syracuse,  N.  Y. 

F.  P.  Sheldon  &  Son, 
Providence,  R  I. 

C.  B.  Comstock, 

New  York 
C.  B.  Comstock, 

New  York 
Turner  Const.  Co., 
Philadelphia,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 


42"  Shape  Mill,  Bethlehem  Steel  Co., 

South  Bethlehem,  Pa . 

Gun  Shop,  Bethlehem  Steel  Co., 

South  Bethlehem,  Pa . 

Mill  No.  1,  Bethlehem  Steel  Co., 

South  Bethlehem,  Pa . 

12-16-18  Mill,  Bethlehem  Steel  Co., 
South  Bethlehem,  Pa . 

Machine  Shop  No.  2,  Bethlehem  Steel 

Co.,  South  Bethlehem,  Pa . 

Blacksmith  Shop,  Bethlehem  Steel  Co., 
South  Bethlehem,  Pa . 

Meter  and  Boiler  House,  Saucon  Plant, 
Bethlehem  Steel  Co.,  So.  Beth.,  Pa.. 
Locker  and  Lavatory  Building,  Bethle¬ 
hem  Steel  Co.,  So.  Bethlehem,  Pa... 
Flange  Shop,  Baldwin  Locomotive 

Works,  Philadelphia,  Pa . 

Erecting  Shop,  Bays  “D”  and  “E,”  Ed- 
dystone,  Pa.,  Baldwin  Loco.  Works.. 

Roof  over  450  Ton  Scale  Hou.4e,  Bald¬ 
win  Locomotive  Works,  Eddystone, 
Pa . 

Accumulator  and  Pump  Shed,  Baldwin 
Locomotive  Works,  Eddystone,  Pa.  .  . 
Pipe  and  Jacket  Shop,  Baldwin  Locomo¬ 
tive  Works,  Eddystone,  Pa . 

Tender  Shop,  Baldwin  Locomotive 

Works,  Philadelphia,  Pa . 

Riveting  Tower,  Baldwin  Locomotive 
Works,  Philadelphia,  Pa . 

Erecting  Shop  No.  2,  Baldwin  Locomo¬ 
tive  Works,  Eddystone,  Pa . 

Cafeteria,  Baldwin  Locomotive  Works, 
Eddystone,  Pa . 

Accumulator  House,  Baldwin  Locomo¬ 
tive  Works,  Eddystone,  Pa . 

Boiler  House  and  Wood  Working  Shop, 
Baldwin  Locomotive  Works,  Eddy¬ 
stone,  Pa . 

Addition  to  Machine  Shop,  Baldwin  Lo¬ 
comotive  Works,  Eddystone,  Pa . 

Highway  Building,  Baldwin  Locomotive 

Works,  Eddystone,  Pa . 

Dry  Kiln  Building,  Baldwin  Locomotive 

Works,  Eddyston-e,  Pa . 

3  Transfer  Buildings,  Baldwin  Locomo¬ 
tive  Works,  Eddystone,  Pa . 

Machine  Shop  and  Office  Building,  Bald¬ 
win  Locomotive  Works,  Eddystone,  Pa. 
Woodworking  Shop,  Baldwin  Locomotive 

Works,  Eddystone,  Pa . 

Power  House  at  Erecting  Shop,  Baldwin 
Locomotive  Works,  Eddystont;,  Pa... 

Boiler  and  Machine  Shops,  Baldwin  Lo¬ 
comotive  Works,  Eddystone,  Pa . 

Sub-Station  ‘‘E,”  Scovill  Manufacturing 

Co.,  Waterbury,  Conn . 

Celluloid  Storage  Building  No.  71,  Sco¬ 
vill  Mfg.  Co.,  Waterbury,  Conn . 

Sub-Station,  Scovill  Manufacturing  Co., 
Waterbury,  Conn . 

Building  No.  118,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

Building  No.  110,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

Building  No.  35A,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

Building  No.  101,  Scovill  Mfg.  Co., 
Waterbury,  Conn . 

Building  No.  68,  Add.,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

5-Story  Manufacturing  Bldg.,  Scovill 

Mfg.  Co.,  Waterbury,  Conn . 

Building  No.  68,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

Building  No.  35,  Scovill  Mfg.  Co., 

Waterbury,  Conn . 

Furnace  Buildings  A  and  B,  Scovill  Mfg. 
Co.,  Waterbury,  Conn . 


Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Chas.  E.  Lehr,  Ch.  Eng., 
So.  Bethlehem,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 


Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 


Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia.  Pa. 

Plan„t  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Plant  Eng.  Highway  Dept., 
Philadelphia,  Pa. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 

Hugh  L.  Thompson, 
Waterbury,  Conn. 


Building  No.  7,  Extension,  Ingersoll 
Rand  Co.,  Phillipsburg,  N.  J . 


Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 


[48] 


Engine  Room,  Ingersoll  Rand  Co., 

Phillipsburg,  X.  J . 

Extension  Buildings  No.  9  and  10,  In¬ 
gersoll  Rand  Co.,  Phillipsburg,  N.  J... 
Lean-to  Extension,  Ingersoll-Rand  Co., 

Phillipsburg,  N.  J . 

Lean-to  Extension  No.  2,  Ingersoll-Rand 

Co.,  Phillipsburg,  N.  J . 

Ext.  to  Drill  L'ept.,  Ingersoll  Rand  Co., 

Phillipsburg,  N.  J . 

Frame  Shop,  American  Locomotive  Co., 

Schenectady,  N.  Y . 

Tank  Shop,  American  Locomotive  Co., 

Schenectady,  N.  Y . 

Sand  Blast  Shed,  American  Locomotive 

Co.,  Schenectady,  N.  Y . 

Repair  Erecting  Shop,  American  Loco¬ 
motive  Works,  Schenectady,  N.  Y. ... 
Extension  to  Heat  Treatment  Bldg., 
American  Lomotive  Co.,  Schenectady, 

N.  Y . 

Hammer  Shop,  American  Locomotive 

Works,  Schenectady,  N.  Y . 

Cylinder  Shop,  American  Locomotive 
Works,  Schenectady,  N.  Y . 

Quigley  Furnace  and  Foundry,  American 
Locomotive  Works,  South  Framing¬ 
ham,  Mass . 

Machine  Room  No.  13,  Chester  Paper 

Co.,  Chester,  Pa . 

Building,  Strathmore  Paper  Co., 

Woronoco,  Mass . 

Building,  Great  Northern  Paper  Co., 

Millinocket,  Me . 

Silk  Dry  Room,  Sunbury  Converting 

Works,  Sunbury,  Pa . 

Dye  House,  Sunbury  Converting  Works, 
Sunbury,  Pa . 

Jigger  Dye  House,  Sunbury  Converting 

Works,  Sunbury,  Pa . 

New  Machine  Shop,  Textile  Machine 

Works,  Wyomissing,  Pa . 

Mills,  Griswold  Worsted  Mills, 

Darby,  Pa . 

Building,  American  Sugar  Refining  Co., 

Boston,  Mass . 

Barrel  Storage  Building,  American  Sugar 
Refining  Co.,  Boston,  Mass . 

Office  and  Wash  Room,  Ordnance  Shop 
No.  6,  Midvale  Steel  Co.,  Nicetown, 

Pa . 

Ordnance  Machine  Shop  No.  4,  Midvale 

Steel  Co.,  Nicetown,  Pa . 

Pattern  Storage,  Midvale  Steel  Co., 

Nicetown,  Pa . 

Addition  No.  6,  Ordnance  Machine  Shop, 

Midvale  Steel  Co.,  Nicetown,  Pa . 

Ordnance  Machine  Shop  No.  7,  Midvale 
Steel  Co.,  Nicetown,  Pa . 

Inspectors  Office,  Midvale  Steel  Co., 
Nicetown,  Pa . 

No.  2  Extension  No.  6,  Ordnancb,  Mid¬ 
vale  Steel  Co.,  Nicetown,  Pa . 

Rolled  Wheel  Plant,  Midvale  Steel  Co., 

Nicetown,  Pa . 

Extension  to  Pattern  Storage,  Midvale 

Steel  Co.,  Nicetown,  Pa . 

Test  Cutting  Shop,  Midvale  Steel  Co., 
Nicetown,  Pa . 

Washer  Building,  Breaker  Building, 
Loading  Bins,  Cambria  Stebl  Co., 

Johnstown,  Pa . 

16-inch  Howitzer  Plant,  Midvale  Steel 

Co.,  Nicetown,  Pa . 

Manufacturing  Plant,  Guaranty  Silk 

Corp.,  Nanticoke,  Pa . 

New  Roof  for  Three  (3)  Machine 
Rooms,  P.  H.  Glatfelter  Co.,  Spring 

Grot'c,  Pa . 

Buildings  for  P.  H.  Glatfelter  Co., 

Spring  Grove,  Pa . 

Evaporator  and  Reclaiming  Building,  P. 
H.  Glatfelter  Co.,  Spring  Grove,  Pa.  . 


Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 

Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 

Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 

Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 

Wm.  Prellwitz,  Eng., 
Phillipsburg,  N.  J. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 


Plant  Eng.  R.  H.  White, 
Schenectady,  N.  Y. 

Geo.  F.  Hardy, 

New  York  City 
Samuel  M.  Green  Co., 
Springfield,  Mass. 

Plant  Engineer, 
Millinockwt,  Me. 

J.  J.  Steller, 

Sunbury,  Pa. 

J.  J.  Steller, 

Sunbury,  Pa. 

J.  J.  Steller, 

Sunbury,  Pa. 
Vanderstucken  Ewing  Co. 
Bethlehem,  Pa. 

Willard  Case  Co., 

New  York  City 
Plant  Engineer, 

Boston,  Mass. 

Plant  Engineer, 

Boston,  Mass. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Levering  &  Garrigues, 
New  York  City 
Wm.  Steele  &  Sons  Co., 
Philadelphia,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Mr.  Moyer,  Ch.  Eng., 
Johnstown,  Pa. 

Barclay  White  &  Co., 
Philadelphia,  Pa. 

Ballinger  &  Perrot, 
Philadelphia,  Pa. 

Geo.  F.  Hardy. 

New  York  City 
J.  A.  Dempwolf, 

York,  Pa. 

J.  A.  Dempwolf, 

York,  Pa. 


Digester  Building,  P.  H.  Glatfelter  Co., 

Spring  Grove,  Pa . 

New  Building,  P.  H.  Glatfelter  Co., 

Spring  Grove,  Pa . 

Factory  Building  for  Aberfoyle  Mfg.  Co., 

Chester,  Pa . 

Fire  Tower,  Aberfoyle  Mfg.  Co., 

Chester,  Pa . 

Cold  Rolling  Mill,  Henry  Disston  & 

Sons,  Tacony,  Pa . 

Transformer  House,  Henry  Disston  & 

Sons,  Tacony,  Pa . 

Welding  and  Finishing  Bldg.,  National 

Tube  Co.,  McKeesport,  Pa . 

Buildings,  National  Tube  Co., 

Lorain,  Ohio  . 

Roof,  Horn  Weld  Building,  National 

Tube  Co.,  McKeesport,  Pa . 

Machine  Shop,  Gillinger  Sons, 

Wissinoming,  Pa . 

Manufacturing  Bldgs.,  Gillinger  Sons, 

Tacony,  Pa . . . 

Buildings  for  Gillinger  Sons, 

Philadelphia,  Pa . 

Building,  The  U.  G.  I.  Con.  Co., 

Llanerch,  Pa . 

Buildings,  The  LT.  G.  I.  Con.  Co., 

Bridgeport,  Pa . 

Boiler  and  Power  House,  Standard  Oil 

Co.,  Bay  Way,  N.  J . 

Roof,  Boiler  Shop,  Standard  Oil  Co., 

Bay  Way,  N.  J . 

Philadelphia  Tapestry  Mills, 

Philadelphia,  Pa . 

Building,  Allentown  Bethlehkm  Gas  Co., 

Didier,  Pa . 

Silk  Mill,  Madison  Textile  Co., 

Lock  Haven,  Pa . 

Power  House,  Madison  Textile  Co., 
Lock  Haven,  Pa . 


Shoemaker- Satterth  waite 
Co. 

Geo.  F.  Hardy  Co., 

New  York  City 

Ballinger  &  Perrot  Co., 
Philadelphia,  Pa. 

Plant  Engineer 
Arthur  N.  Blum 
Philadelphia,  Pa. 

Henry  Baton, 

Philadelphia,  Pa 

Plant  Engineer 

Plant  Engineer 

Plant  Engineer 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 

Plant  Engineer 

Plant  Engineer 

Plant  Engineer 

Plant  Engineer 

Wm.  Steele  &  Sons  Co., 

Philadelphia,  Pa. 

U.  G.  I.  Con.  Co., 
Philadelphia,  Pa. 

Turner  Construction  Co. 
Philadelphia,  Pa. 

Turner  Construction  Co. 
Philadelphia,  Pa. 


OFFICE,  STORE  AND  MERCANTILE 
BUILDINGS 


Office  Addition,  Lewis  F.  Shoemaker, 

Pottstown,  Pa . 

General  Electric  Bldg.,  General  Elec¬ 
tric  Co.,  Philadelphia,  Pa . 

Roof,  McGraw-Hill  Publishing  Co., 

New  York  City . 

Alteration,  Harriman  National  Bank 

Building,  New  York  City . 

Alteration,  1306  Chestnut  St., 

Philadelphia,  Pa . 

Alteration,  433  East  48th  St., 

New  York  City . 

Alteration,  No.  60  Wall  St., 

New  York  City . 

Alteration,  Geo.  Miller  Piano  Store, 

Philadelphia,  Pa . 

Alteration,  Building  for  U.  S.  Food 

Products  Co.,  New  York  City . 

Haddon  Hall,  Stores  and  Pavilion, 

Atlantic  City,  N.  J . 

Alteration  and  Addition,  Curtis  Building, 

Philadelphia,  Pa . 

Central  Office  Bldg.,  for  Bell  Telephone 

Co.,  Atlantic  City,  N.  J . 

Alteration  and  Addition,  Curtis  Bldg., 

Philadelphia,  Pa . 

Addition,  No.  2  Broadway, 

NTew  York  City . 

Roof,  Parkway  Building, 

Philadelphia,  Pa . 

Addition  to  Thalheimer  Dept.  Store, 

Richmond,  Va . 

Headquarters  Building,  Bureau  of 

Water,  Philadelphia,  Pa . 

Fourth  Floor,  Anderson  Galleries, 

New  York  City . 

City  Centre  Building, 

Philadelphia,  Pa . 

Addition  to  Kaufman  Store, 

Pittsburgh,  Pa . 


Plant  Engineer 

Plant  Engineer 
Starrett  &  Van  Vleck, 
New  York  City 
Wells  Bosworth, 

New  York  City 

David  Basset 
Snare  &  Triest  Co., 

New  York  City 
Clinton  &  Russell, 

New  York  City 

David  Basset 
Kaufman  &  Levine, 

New  York  City 
Rankin,  Kellogg  &  Crane, 
Philadelphia,  Pa. 

Frank  C.  Roberts  Co., 
Philadelphia,  Pa. 

Bell  Telephone  Co. 

Frank  C.  Roberts 
W.  B.  Tubby, 

New  York  City 
Rouse  &  Goldstone, 
Philadelphia,  Pa. 

Carneal  &  Johnson, 
Richmond,  Va. 

Dept,  of  Public  Works, 
Philadelphia,  Pa. 

Charles  H.  Gillespie, 

New  York  City 
Rouse  &  Goldstone, 
Philadelphia,  Pa. 

Benno  Janssen, 

Pittsburgh,  Pa. 


1 49  I 

AVERY  LIBRARY 

.COLUMBIA  UMVEfiSBir 


Alteration  and  Addition  to  Bell  Tele¬ 
phone  Bldg.,  Wilkes-Barre,  Pa . 

Alteration  and  Addition  to  Kaufman 

Store,  Pittsburgh,  Pa . 

State  Office  Building, 

.Richmond,  Va . 

Lancaster  Central  Office  Building  for 
Bell  Telephone  Co.,  Lancaster,  Pa.. 
Atlantic  Building,  William  and  Wall 

Sts.,  New  York  City . 

Lawyers  Title  Insurance  Co.  Building, 

Montague  St.,  Brooklyn,  N.  Y . 

Wesleyan  Building, 

Boylston  St.,  Boston,  Mass . 

Bacon  and  Chappel  Building, 

Syracuse,  N.  Y . 

Vinney  Building, 

Syracuse,  N.  Y . 

Office  Building,  B.  R.  &  P.  R.  R.  Co., 

Rochester,  N.  Y . 

42  Broadway  Building, 

New  York  City . 

Mutual  Building, 

Richmond,  Va . 

60  Wall  Street  Building, 

New  York  City . 

Beaver  Building, 

New  York  City . 

National  Bank  of  Savannah  Bldg., 

Savannah,  Ga . 

Hudson  Building, 

South  Warren  St.,  Syracuse,  N.  Y.  .  . 
Smith  Block, 

Rutland,  Vt . 

Store,  Hurlburt  &  Sons, 

Philadelphia,  Pa . 

Dept.  Store,  Sissons  Bros  &  Weldon 

Co.,  Binghamton,  N.  Y . 

Building,  Fred  J.  Weyand, 

Boston,  Mass . 

Mercantile  Building,  E.  L.  Snider, 

Boston,  Mass . 

Addition,  Horn  &  Hardart  Co., 

N  ew  Y ork  City . 

Store  and  Manufacturing  Building,  E.  L. 

Snider,  Boston,  Mass . 

Building,  Whidden  &  Co., 

Boston,  Mass . 

Sun  Building, 

Lowell,  Mass . 

Factory  Building,  C.  W.  Olmstead, 

Syracuse,  N.  Y . 

Building,  Julius  Stoll, 

Rochester,  N.  Y . 

Page  Building, 

Lowell,  Mass . 

McCarthy  Building, 

Syracuse,  N.  Y . 

Film  Exchange  Building, 

Boston,  Mass . 


John  T.  Windrim, 
Philadelphia,  Pa. 

Benno  Janssen, 

Pittsburgh,  Pa. 

Carneal  &  Johnson, 
Richmond,  Va. 

John  T.  Windrim, 
Philadelphia,  Pa. 

Clinton  &  Russell, 

NLw  York  City 
Frank  J.  Helmle, 

Brooklyn,  N.  Y. 

C.  H.  Blackall, 

Boston,  Mass. 

A.  L.  Brockwav, 

Syracuse,  N.  Y. 

C.  Merrit  Curtis, 

Syracuse,  N.  Y. 

Clinton  &  Russell, 

New  York  City 
Henry  Ives  Cobb, 

New  York  City 
Clinton  &  Russell, 

New  York  City 
Clinton  &  Russell, 

New  York  City 
Clinton  &  Russell, 

New  York  City 
H.  W.  Witcover, 

Savannah,  Ga. 

Russell  &  King, 

Syracuse,  N.  Y, 

Arthur  H.  Smith, 

Rutland,  Vt. 

Rankin,  Kellogg  &  Crane, 
Philadelphia,  Pa. 

T.  I.  Lacey  &  Sons, 
Binghamton,  N.  Y. 

C.  Henry  Desmond, 

Boston,  Mass. 

F.  A.  Norcross, 

Boston,  Mass. 

Harry  R.  Rust, 

Philadelphia,  Pa. 

F.  A.  Norcross, 

Boston,  Mass. 

Whidden  &  Co., 

Boston,  Mass. 

C.  H.  Blackall, 

Boston,  Mass. 

Taber  &  Baxter, 

Syracuse,  N.  Y. 

J.  H.  Oberlies, 

Rochester,  N.  Y. 

Derby,  Sheppard  &  Robin¬ 
son,  Lowell,  Mass. 

Russell  &  King, 

Syracuse,  N.  Y. 

F.  A.  Norcross, 

Boston,  Mass. 


PUBLIC  AND  SEMI-PUBLIC  BUILDINGS 


Auditorium  and  Ice  Palace  Geo.  F.  Pawling  Co., 

Philadelphia,  Pa .  Philadelphia,  Pa. 

I).  A.  R.  Building,  Marsh  &  Peter, 

Washington,  D.  C .  Washington,  D.  C. 

Passenger  Station,  N.  Y.,  N.  H.  &  H  F.  W.  Mellor, 

R.  R.,  Hartford,  Conn .  New  Haven,  Conn. 

Pennsylvania  Railroad  Terminal, 

Jersey  City,  N.  J .  P.  R.  R.  Co.  Engr. 

City  Hall,  H.  W.  Witcover, 

Savanndh,  Ga .  Savannah.  Ga. 

Lehigh  County  Court  House,  Robert  S.  Rathbun, 

Allentown,  Pa .  Allentown,  Pa. 

St.  Nicholas  Skating  Rink,  Ernfcst  Flagg, 

West  66th  St.,  New  York  City .  New  York  City 

Engine  House,  Merrick  &  Randall, 

Syracuse,  N.  Y .  Syracuse,  N.  Y. 


BANKING  BUILDINGS 


Peoples  Bank  Building, 
Steelton,  Pa . 


Herman  Miller 


Roof,  Federal  Reserve  Bank, 

Richmond,  Va . . 

Building,  Richmond  Trust  Co., 

Richmond,  Va . . 

Bank  Building, 

Haddonfield,  N.  J . 

Bergen  and  Lafayette  Trust  Co., 

Jersey  City,  N.  J . 

Peoples  Bank, 

South  Orange,  N.  J . 

New  Haven  Savings  Bank, 

New  Haven,  Conn . 

Cambridge  Savings  Bank, 

Cambridge,  Mass . 

Five  Cent  Savings  Bank, 

Fall  Riv<er,  Mass . 

Peoples  Bank  Building, 

Harrisburg,  Va . 

Murchison  National  Bank  Bldg., 

Wilmington,  Del . 

First  National  Building, 

Williamsport,  Pa . 


U.  S.  Government, 
Washington,  D.  C. 
Starrett  &  Van  Vleck, 
New  York  City 

Simon  &  Simon 
Clinton  &  Russell, 

New  York  City 
Robert  S.  Stephenson. 
New  York  City 
Britw  &  Bacon, 

New  York  City 
C.  H.  Blackall, 

Boston,  Mass. 

W.  L.  Nowel, 

Fall  River,  Mass. 

Alfred  C.  Bossom, 

New  York  City 
Kenneth  M.  Murchison, 
New  York  City 
Paul  A.  Davis,  3rd, 
Philadelphia,  Pa. 


THEATRES 


Roof  of  Cosmos  Theatre, 

Washington,  D.  C . 

Royal  Palace  Theatre, 

Philadelphia,  Pa . 

Moving  Picture  Theatre,  28th  and  Reed 

Sts.,  Philadelphia,  Pa . 

Proctor’s  Fifty-Eighth  St.  Theatre, 

New  York  City . 

Eckel  Theatre, 

Syracuse,  N.  Y . 

New  York  Theatre,  Fifty-Fifth  St.  and 

Broadway,  New  York  City . 

Criterion  Theatre,  Fifty-Fourth  Street 

and  Broadway,  New  York  City . 

Nixon  Theatre, 

Atlantic  City,  N.  J . 

Lew  Fields’  Theatre,  Forty-Second  St., 
near  Eighth  Ave.,  New  York  City... 
Columbia  Theatre, 

Boston,  Mass . 

Temple  Theatre, 

Roxbury,  Mass . 


Thomas  Marshall, 
Washington,  D.  C. 

R.  Beard, 

Philadelphia,  Pa. 

W.  P.  Cameron  Eng.  Co., 
Philadelphia,  Pa. 

J.  B.  McElfatrick  &  Son, 
New  York  City 
C.  Merrit  Curtis, 

Syracuse,  N.  Y. 

J.  B.  McElfatrick  &  Son, 
New  York  City 
J.  B.  McElfatrick  &  Son, 
New  York  City 
Magaziner  &  Potter, 
Philadelphia,  Pa. 


Thos.  W.  Lamb, 
New  York  City 
A.  H.  Bowditch, 
Boston,  Mass. 


GARAGES 


Corbett  Garage, 

Syracuse,  N.  Y . 

Garage  for  Fred  Ostendorff, 

Beach  HavGn,  N.  J . 

Garage  and  Stable  Building, 

Philadelphia,  Pa . 

Jones’  Garage. 

Dorchester,  Mass . 

J.  F.  Doyle  Garage, 

Dorchester,  Mass . 

J.  B.  Lyons  Garage, 

Boston,  Mass . 

C.  A.  Dailey  Garage, 

South  Boston,  Mass . 

Three  Fields  Garage, 

Brighton,  Mass . 

J.  Shapiro  &  Son  Garage, 

Boston,  Mass . 

Geo.  T.  Horan  Garage, 

Charlestown,  Mass . 

Albert  Geiger  Garage, 

Boston,  Mass . 

Frank  E.  Fuller  Garage, 

Springfield,  Mass . 

Stowell  Garage, 

Syracuse,  N.  Y . 

Garage  and  Show  Room,  White  Auto 
Co,.  Brookline,  Mass . 


Ward,  Wellington  Ward. 
Syracuse,  N.  Y. 

Carl  P.  Berger, 
Philadelphia,  Pa. 

A.  G.  Zimmerman, 

New  York  City 
Stebbins  &  Watkins, 
Boston,  Mass. 

C.  A.  &  F.  A.  Russell, 
Boston,  Mass. 

C.  A.  &  F.  A.  Russell, 
Boston,  Mass. 

James  T.  Ball, 

Boston,  Mass. 

John  C.  Spofford, 

Boston,  Mass. 

F.  A.  Norcross, 

Boston,  Mass. 

The  Silverman  Eng.  Co., 
Boston,  Mass. 

Densmore  &  LeClear, 
Boston,  Mass. 

B.  E.  Gleckler, 
Springfield,  Mass. 

M.  E.  Granger, 

Syracuse,  N.  Y. 

Clinton  J.  Warren, 
Boston,  Mass. 


SCHOOLS  AND  EDUCATIONAL  BUILDINGS 

Roof  over  Gymnasium  and  Auditorium, 

Bethlehem  High  School,  Bethlehbm,  V.  T.  Ritter, 

Pa .  Philadelphia,  Pa. 


Ellis  College  Cottages,  V.  T.  Ritter, 

Newtown  Sq.,  Pa .  Philadelphia,  Pa. 

Buildings,  Mary  wood  College,  J.  J.  Howley, 

Scranton,  Pa .  Scranton,  Pa. 

School  Building,  LLwis  Hancock,  Jr., 

Carbondale,  Pa .  Scranton,  Pa. 

High  School,  Henry  L.  Reinhold, 

Conshohocken,  Pa .  Philadelphia,  Pa. 

High  School,  Edward  H.  Davis, 

Olyphant,  Pa .  Scranton,  Pa. 

School  of  Theology,  Boston  University,  Bellows  &  Aldrich, 
Boston,  Mass .  Boston,  Mass. 

Physical  Laboratory,  Teachers’  College,  Parish  &  Schroeder, 
120th  St.  and  Amsterdam  Ave.,  N.  Y.  New  York  City 

High  School,  Arnold  H.  Moses, 

Moorestown,  N.  J .  Philadelphia,  Pa. 

Holy  Trinity  School,  F.  W.  Foote, 

Wallingford,  Conn . .  New  Haven,  Conn. 

High  School,  Fuller-Robinson  Co., 

Herkimer,  N.  Y .  Albany,  N.  Y. 

High  School,  Fuller-Robinson  Co., 

Ilion,  N.  Y .  Albany,  N.  Y. 

Fine  Arts  Building,  Manior  Bros., 

Rochester,  N.  Y .  Rochester,  N.  Y. 


CLUBS  AND  SOCIETY  BUILDINGS 

Roof  and  Locker  Room,  Masonic  Tern-  John  Hiltz  &  Sons  Co., 


pie,  Baltimore,  Md .  Baltimore,  Md. 

Elks  Club,  John  J.  Howley, 

Scranton,  Pa .  Scranton,  Pa. 

Naval  Y.  M.  C.  A.,  Parish  &  Schroeder, 

Brooklyn,  N.  Y .  New  York  City 

Y.  M.  C.  A.,  Horace  Trumbauer, 

Atlantic  City,  N.  J .  Philadelphia,  Pa. 

Republican  Club,  York  &  Sawyer, 

West  40th  St.,  New  York  City .  New  York  City 

Y.  M.  C.  A.,  Chas.  Ailing  Gifford, 

Newark,  N.  J .  New  York  City 


HOSPITALS 


Cambria  Hospital,  Benno  Janssen, 

Johnstown,  Pa .  Pittsburg,  Pa. 

Solarium,  St.  Vincent’s  Hospital,  1.  E.  Ditmars, 

New  York  City .  New  York  City 

Disturbed  Patients  Building,  State  Kendall-Taylor  Co., 

Hospital,  Boston,  Mass .  Boston,  Mass. 

Physicians  and  Surgeons  Hospital,  C.  F.  Townsend, 

New  Haven,  Conn .  New  Haven,  Conn. 

Homeopathic  Hospital,  Kendall-Taylor 

Boston,  Mass .  Boston,  Mass. 

Babies  Hospital,  Fifty-Fifth  St.  and  York  &  Sawyer, 

Lexington  Ave.,  New  York  City .  New  York  City 

Connecticut  Hospital  for  Insane,  Curtis  &  Johnson, 

Middletown,  Conn .  Hartford,  Conn. 

Home  for  Aged,  David  J.  Barry, 

Providence,  R.  I .  Providence,  R.  I. 


CHURCHES,  INSTITUTIONS,  ETC. 


St.  Paul’s  Church,  Rock  Creek  Parish, 

Washington,  D.  C . 

German  Protestant  Home, 

Lawndale,  Philadelphia,  Pa . 

Broadway  Tabernacle,  Fifty-sixth  St. 

and  Broadway,  New  York  City . 

St.  Bartholmews’  Parish  House,  Forty- 
second  St.  and  Third  Ave.,  New  York 

City  . 

Maryland  Historical  Building, 

Baltimore,  Md . 

Tabernacle,  William  Sunday, 

Boston,  Mass . 

Blakeley  Almshouse, 

Peckville,  Pa . 


Delos  H.  Smith, 
Washington,  D.  C. 
Koelle-Speth  Co., 
Philadelphia,  Pa. 

Barney  &  Chapman, 

New  York  City 

Clinton  &  Russell, 

New  York  City 
Wyatt  &  Nolting, 
Baltimore,  Md. 
Kendall-Taylor  Co., 

Boston,  Mass. 

Roberts  Lumber  &  Realty 
Co.,  Peckville,  Pa. 


RESIDENCES 


Snowden  Residence, 

Bryn  Mawr,  Pa . 

Wm.  K.  Vanderbilt  Residence, 

Westbury,  L.  I . 

Alexander  Residence,  48  West  58th  St., 

New  York  City . 

J.  Murray  Mitchel  Residence,  Tuxedo 

Park,  N.  Y . 

H.  K.  Janssen  Residence, 

Wyomissing,  Pa . 

H.  A.  Babcock  Residence,  22  East  52nd 

St.,  New  York  City . 

Archibald  D.  Russell  Residence, 

Princeton,  N.  J . 

H.  W.  Poor  Residence, 

Tuxedo  Park,  N.  Y . 

Wm.  M.  Wiard, 

Syracuse,  N.  Y . 


Brockie  &  Hastings 
John  R.  Hill, 

Westbury,  L.  T. 

Warren  &  Wetmore, 

New  York  City 
Clinton  &  Russell, 

New  York  City 
A.  A.  Ritcher, 

Reading,  Pa. 

Clinton  &  Russell, 

New  York  City 
Clinton  &  Russell, 

New  York  City 
T.  H.  Randall, 

New  York  City 

Ward,  Wellington  &  Ward, 

Syracuse,  N.  Y. 


APARTMENT  HOUSES 


Apartment  House,  Horace  Trumbauer, 

Overbrook,  Pa .  Philadelphia,  Pa 

Carlton  Court,  Ulysses  G.  Orr, 

Buffalo,  N.  Y .  Buffalo,  N.  Y. 

Astor  Apartments,  75th  St.  and  Broad-  Clinton  &  Russell, 

way,  New  York  City .  New  York  City 

Ivy  Court  Apartments,  210-230  West  H.  C.  Hazlett, 

1 07th  St.,  New  York  City .  New  York  City 

Swarthmore  Apartments,  22nd  and  Wal-  Clinton  &  Russell, 

nut  Sts.,  Philadelphia,  Pa .  New  York  City 

Apartment  House,  98th  St.,  near  West  H.  Alban  Reeves, 

End  Ave.,  New  York  City .  New  York  City 

Addition  to  Apartment  House,  J.  N.  Phelps  Stokes, 

New  York  City .  New  York  City 

Addition  to  Coronado  Apartments,  Frederick  Webber, 

Philadelphia,  Pa .  Philadelphia,  Pa. 

Addition  to  Mohican  Hotel,  H.  J.  Hardenburg, 

New  London,  Conn .  New  York  City 

Apartment  House,  Fifteenth  and  Locust  Frederick  Webber, 
St.,  Philadelphia,  Pa .  Philadelphia,  Pa. 


Some  Buildings  in  the  Dominion  of  Canada 
which  have  employed 


THE  METROPOLITAN  SYSTEM 


Hydrating  Roof,  American  Cyanide  Co., 

Niagara  Falls,  Ont . 

Factory  Building  for  Crane  Co.,  Ltd., 

Montreal,  Que . 

Motor  and  Axle  Buildings,  General  Mo¬ 
tors  Corp.,  Walkerville,  Ont . 

Benjamin  Jacobs  Synagogue, 

Montreal,  Que . 

Deverennes  Garage, 

Quebfcc,  P.  Q . 

Pantages  Theatre, 

Toronto,  Ont.  .  .  . 

Boiler  House,  Pres-O-Lite  Co.. 

Toronto,  Ont . 

Bovril  Building, 

Montreal,  Que . 


American  Cyanide  Co. 
Brown  &  Vallance, 
Montreal,  Que. 

General  Motors  Corp. 
Cajitan  Dufort  &  Asso., 
Montreal,  Que. 

Robitaille  &  Robitailfe, 
Quebec,  P.  Q. 

Thos.  W.  Lamb. 

New  York  City 
Linde  Air  Products  Co., 
New  York  City 
Fetherstonaugh  & 
McDougall 


New  Buildings,  Abitibi  Power  &  Pap*er 

Co.,  Iroquois  Falls,  Ont . 

New  Buildings,  St.  Maurice  Pulp  & 
Paper  Co.,  Cape  Magdalene,  Que.  .  .  . 
Power  House,  Hiram  Walker  &  Sons, 

Walkerville,  Ont . 

Recovery  Dept.,  Wayagamack  Puip  & 

Paper  Co.,  Three  Rivers,  Que . 

Five  Bays  to  Foundry  and  Lavatory 

Roof,  Montreal,  Que . 

Roof  of  Dominion  Oxygien  Co., 

Montreal,  Que . 

Roofs,  Phillips  Factory,  Brockville,  Ont., 

Canada  . 

St.  Lawrence  Paper  Mill, 

Three  Rivers,  Que....- . 


Geo.  F.  Hardy, 

New  York  City 
H.  S.  Ferguson  Co., 

New  York  City 

Smith,  Hinchman  &  Grylls, 

Detroit,  Mich. 

Wayagamack  Pulp  &  Paper 
Co.,  Three  Rivers,  Que. 

T.  Pringle  &  Sons, 
Montreal,  Que. 

Dominion  Oxygen  Co., 
Montreal,  Que. 

Melville  Miller, 

Montreal,  Canada 

St.  Lawrence  Pap.er  Mill, 

Three  Rivters,  Que. 


AVERY  LIBRARY 
COLUMBIA  UNIVERSITY 


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Gallery  No.  2,  Elevator  Jetty, 

Montreal  . 

Addition  to  9  and  10  Buildings,  Durant 

Motors,  Ltd.,  Toronto,  Ont . 

Roof,  New  Forge  Shop,  Notre  Dame 

Works,  Montreal,  Que.,  Canada . 

Roof — Top  Floor  of  Digester  Bldg, 
Wayagamack  Pulp  &  Paper  Co . 

Roof  of  Transformer  House,  Wayaga¬ 
mack  Pulp  &  Paper  Co . 

Building  for  Wabasso  Cotton  Co.,  Three 

Riwrs,  Que.,  Canada . 

Building  for  Drummond  McCall  Co.,. 

Ltd.,  Montreal,  Que . 

Sauvegarde  Building, 

Montreal,  Que . 

St.  Clotilde  School, 

Montreal,  Que . 

Machine  Shop  Extension  and  Covered 
Shed,  Montreal,  Que . 

Main  Building,  Boiler  House  and  Coal 
Bin  CLiling,  New  Toronto,  Canada.. 
St.  Patrick’s  Hall, 

Ottawa,  Canada  . 

Paint  Mixing  Shop, 

Hamilton,  Canada  . 

Unity  Building, 

Montreal,  Que . 

Gurney  Foundry  Co.  Plant, 

Toronto  Junction,  Ont . 

Apartment  House, 

Montreal,  Que . 

Foundry,  Montreal  Locomotive  Works, 

Montreal,  Que . 

Running  Shtjd,  Montreal  Locomotive 
Works,  Montreal,  Que . 

Steam  Turbine  Station,  Montreal  Light, 
Heat  &  Power  Co.,  Montreal,  Que... 
Office  Building,  Canadian  Vickers,  Ltd., 
Montreal,  Que . 

Longueiul  School, 

Montreal,  Que . 

Technical  School, 

Toronto,  Ont . 

Extension,  Brown’s  Copper  and  Brass 
Rolling  Mills  Co.,  New  Toronto,  Ont., 

Canada  . 

Addition  to  Star  Publishing  Co.  Build¬ 
ing,  Montreal,  Que . 

Foundling  and  Baby  Hospital,  Mon¬ 
treal,  Que . 


Harbour  Commissioners  of 
Montreal,  Que. 

Norman  McLeod,  Ltd., 
Toronto,  Ont. 

Plant  Engineer 
T.  Pringle  &  Sons  Co., 
Montreal,  Que.,  Canada 

T.  Pringle  &  Sons  Co., 
Montreal,  Que.,  Canada 

T.  Pringle  &  Sons  Co., 
Montreal,  Que.,  Canada 

Fried  G.  Robb 

C.  E.  Deakin 
Montreal,  Que. 

A.  Filion  &  Frere, 
Montreal,  Que. 

Montreal  Locomotive  Wks., 
Montreal,  Que. 

Brown’s  Copper  &  Brass  R. 
M.,  New  Toronto,  Ont. 
Colborne  E.  Meredith, 
Ottawa,  Canada 

National  Steel  Car  Co., 
Hamilton,  Ont. 

Unity  Building,  Ltd., 
Montreal,  Que. 

Witchall  &  Son, 

Toronto,  Ont. 

James  H.  Maher, 

Montreal,  Que. 

Montreal  Loco.  Wks.,  Ltd., 
Montreal,  Que. 

Montreal  Loco.  Wks.,  Ltd., 
Montreal,  Que. 

D.  G.  Loomis  &  Sons  Co., 
Montreal,  Que. 

E.  G.  M.  Cape, 

Montreal,  Que. 

Guertin  &  Bouchard, 
Montreal,  Que. 

Norcross  Bros.  Co., 
Toronto,  Ont. 

Brown’s  Copper  &  B.  R. 
Mills,  New  Toronto,  Ont. 
James  Shearer  Co.,  Ltd., 
Montreal,  Que. 

Anglins  Ltd., 

Montreal,  Que. 


St.  Frs.  Solano  School  and  Residence, 

Montreal,  Que . 

Sun  Life  Assurance  Society  Building, 

Montreal,  Que . 

Loretto  Academy, 

Toronto,  Ont . 

Cane  Rooming  House, 

Toronto,  Ont . 

New  Building, 

New  Toronto,  Ont . 

East  End  Steam  Plant, 

Hamilton,  Ont . 

St.  Zotique  School, 

Montreal,  Que . 


A.  Filion  &  Frere, 

Montreal,  Que. 

P.  Lyall  &  Sons  Const.  Co., 
Montreal,  Qut_>. 

Neil  G.  Beggs, 

Toronto,  Ont. 

Neil  G.  Beggs, 

Toronto,  Ont. 

Brown’s  Copper  &  B.  R. 
Mills,  New  Toronto 
Dominion  Power  &  Trans¬ 
mission  Co.,  Hamilton,  Ont. 
R.  Legault  &  Co., 
Montreal,  Que. 


Warehouse,  Andrew  Wilson  Co., 

Toronto,  Ont . 

Theatre, 

Toronto,  Ont . 

Nurses’  Home, 

Montreal,  Que . 

Adelaide  St.  Hotel, 

Toronto,  Ont . 

Pipe  Foundry,  Harkness  &  Oxby, 

Toronto,  Ont . 

Royal  Bank  of  Canada, 

London,  Canada  . 

Crane  Runway  Building  (Co.’s  Engi¬ 
neer),  Montreal,  Qt*e . 

Grand  Stand — R.  E.  Bostrom, 

Montreal,  Que . 

Addition,  Bell  Telephone  Co., 

Montreal,  Que . 

Building,  Wayagamack  Pulp  &  Paper 
Co.,  Three  Rivers,  Que. 

Majestic  Theatre, 

Montreal,  Que . 

Rolling  Mills, 

Toronto,  Ont . 

New  Rod  Mill  Building, 

Montreal,  Que . 

Crane  Runway, 

Montreal,  Que . 

Jeffrey  Hall  Hospital, 

Montreal,  Que . 

Foundry  Extension,  Montreal  Locomo¬ 
tive  Works,  Montreal,  Que . 

Factory — Crane  Ltd., 

Montreal,  Que . 

Machine  Room  Extension,  Price  Bros. 

Co.,  Jonquiere,  Canada  . 

Auditorium, 

Ottawa,  Ont . 


Andrew  Wilson  &  Co.,  Ltd., 
Toronto,  Ont. 

Jos.  T.  Turner, 

Toronto,  Ont. 

A.  L.  Byers  &  Co.,  Ltd., 
Montreal,  Quo. 

Wm.  Heppler, 

Toronto,  Ont. 

National  Iron  Works, 
Toronto,  Ont. 

Purdy  &  Henderson, 
Montreal,  Que. 

Steel  Co.  of  Canada,  Ltd., 
Montreal,  Que. 

Reid,  McGregor  &  Reid, 
Montreal,  Que. 

Anglins,  Ltd., 

Montreal,  Que. 

T.  Pringle  &  Sons  Co., 
Montreal,  Que. 

D.  J.  Creighton, 

Montreal,  Que. 

Brown’s  Copper  &  Brass  R. 
M.,  New  Toronto,  Ont. 
Steel  Co.  of  Canada,  Ltd., 
Montreal,  Que. 

Stfeel  Co.  of  Canada,  Ltd., 
Montreal,  Que. 

McMullen,  Reiley  &  Durley, 
Montreal,  Que. 

Plant  Engineer 
Anglin’s  Ltd., 

Montreal,  Que. 

G.  F.  Hardy,  Eng., 

New  York  City 
Richards  &  Abra, 

Ottawa,  Ont. 


In  the  foregoing  list  there  are  undoubtedly  some  buildings  which  are  near  enough  for 
your  convenience  should  you  desire  to  inspect  Metropolitan  Floor  and  Roof  Installations. 
If  you  cannot  find  them  on  this  list  we  will  be  glad  to  direct  you  to  the  nearest  installations. 

Please  do  not  hesitate  to  call  on  us  for  any  further  information  you  may  wish.  We  are 
not  manufacturers  but  an  operating  or  service  organization  and  will  be  glad,  not  only  to 
provide  all  necessary  information,  but  to  submit  our  recommendations  for  your  floor  and 
roof  construction  without  the  slightest  obligation  on  your  part. 


KEYSTONE  GYPSUM  FIREPROOFING  CORPORATION 


1328  BROADWAY,  NEW  YORK,  N. 

Y. 

Branches: 

Philadelphia,  Pa. 

Washington,  D.  C. 

Richmond,  Va. 

North  American  Building 

Real  Estate  Trust  Building 

418  East  Main  Street 

KEYSTONE  FIREPROOFING  COMPANY 

OF 

CANADA,  Ltd. 

Quebec 

Toronto 

Montreal 

103  St.  John  Street 

250  Richmond  Street,  W. 

603  New  Birks  Building 

Printed  in  U.  S.  A. 
Prepared  and  executed  by 
Philip  Kobrk  Cr>.,  Inc. 


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